Terms of Service

Published: September 14, 2026 | Last updated: September 22, 2026 | Effective for existing accounts: October 7, 2026

These Terms of Service (the “Terms”) are a binding contract for services between you and StackBlitz, Inc. (“Stackblitz”, “Licensor”, “we”, “us”, or “our”) for your use of the products and services Stackblitz makes available through www.StackBlitz.com, www.Bolt.new, and related properties (the “Sites,” as further defined in Section 1.3), including StackBlitz, Bolt, and the developer tools described in Section 1.5. By accepting these Terms, or by accessing or using the Services after they become effective for you, you agree to these Terms. Your use of the Services is also governed by our Privacy Policy, available at https://stackblitz.com/privacy-policy, which describes how we collect, use, and share personal information and how you may exercise your privacy rights. These Terms apply to all Services, whether you use StackBlitz, Bolt, or both.

Transition for Existing and New Accounts. For an account created before September 14, 2026, these Terms take effect on October 7, 2026 or, if later, fifteen (15) days after Stackblitz first notifies you of these Terms by email or within the Services. For an account created on or after September 14, 2026, these Terms take effect when you accept them. When these Terms take effect for you, they replace the StackBlitz Terms of Service last updated January 10, 2024.

Separate Written Agreements. If you or your organization has a separate written agreement with Stackblitz that governs any Services (including an enterprise agreement, order form, or data processing addendum), that agreement controls to the extent of any conflict, and these Terms apply only to the extent not addressed by that agreement. Nothing in these Terms or the Acceptable Use Policy supersedes or amends such an agreement except as expressly provided in it.

The Terms contain, among other things, warranty disclaimers, liability limitations and use limitations. Please contact us at legal@stackblitz.com with any issues or notices related to the Terms.

If you do not agree to these Terms, do not accept them and stop using the Services.

1. SERVICES: LICENSE TERMS AND DEFINITIONS

1.1 Services.

Subject to your compliance with the Terms, Stackblitz will provide the Services (as defined in Section 1.3) via the Sites. The Services may include a non-exclusive, non-transferable, worldwide license to access certain Site Content fully subject to the terms of these Terms. Stackblitz may modify the Services and these Terms of Service at its sole discretion at any time. If we make material changes to these Terms, we will provide reasonable advance notice by email to the address associated with your account or within the Services before the changes take effect. Changes that do not reduce your rights or increase your obligations (such as changes that narrow Stackblitz’s rights or add benefits for you), and terms for new optional features, plans, or offers that you accept separately before using them, may take effect when posted or accepted. Your continued use of the Services after updated Terms become effective constitutes your acceptance of them; if you do not agree, you must stop using the Services. This paragraph also governs when material changes to the Acceptable Use Policy and other policies incorporated into these Terms become effective.

1.2 License and Access to Services

Access to the Services (as defined in Section 1.3) is provided via a non-exclusive, non-transferable, worldwide license.

We reserve the right to modify or discontinue, temporarily or permanently, all or any portion of the Sites and our Services without notice. We will not be liable to you or to any third party for any modification, suspension, or discontinuance of all or any portion of the Sites or our Services.

We also reserve the right to reject, refuse to post, or remove any material that you post or submit for posting on the Sites, and to restrict, suspend, or terminate your access to our Sites or Services at any time, for any reason (including, but not limited to, our sole determination that you violated any provision of these Terms), or for no reason, with or without prior notice, and without liability. Upon termination for any reason or no reason, you continue to be bound by these Terms. Except where these Terms or applicable law require otherwise, if Stackblitz terminates or suspends your access to the Services other than for cause, Stackblitz will, for a period of thirty (30) days following the effective date of such termination or suspension, make available to you a reasonable means to retrieve or export your User Content, after which Stackblitz may delete your User Content. Notwithstanding the foregoing, Stackblitz may suspend, disable, or delete your account and User Content immediately and without providing any export or retention period where Stackblitz reasonably believes that you have violated Section 2 of these Terms or the Acceptable Use Policy, where retention of or continued access to your User Content would violate applicable law or these Terms, or where immediate action is reasonably necessary to protect the Services, Stackblitz, other users, or any third party from harm or liability. Stackblitz is under no obligation to retain your User Content beyond the periods described above, and you are solely responsible for maintaining your own independent backups of your User Content.

1.3 Definitions.

“Licensor Marks” means Licensor’s proprietary trademarks, trade names, branding, or logos made available for use pursuant to these Terms.

“Services” means all products and services Stackblitz makes available through the Sites, including the StackBlitz browser-based development environment, Bolt (the AI-powered application builder), application hosting (including bolt.host), the StackBlitz SDK, the WebContainer API, and any related tools, APIs, and features.

“Sites” mean stackblitz.com and bolt.new, together with any related Stackblitz websites, subdomains, and hosting properties through which the Services are made available, including bolt.host and webcontainers.io.

“Site Content” means all material, data, information, products and product features published on the Sites and accessible to you.

“User Content” means content you created, uploaded, or stored through the Services. User Content includes AI Input and AI Output and corresponds to “Your Content” as that term is used in the Acceptable Use Policy.

“AI Features” means the features of the Services that use artificial intelligence to generate or suggest code, text, applications, websites, or other output.

“AI Input” means prompts, code, files, and other content you submit to the AI Features.

“AI Output” means code, text, applications, websites, or other output generated by the AI Features in response to your AI Input.

“Bolt Model Development Content” means (i) AI Input you submit through Bolt; (ii) AI Output generated through Bolt; (iii) related interaction data generated in connection with your use of Bolt AI Features, including error messages, correction or fix traces, tool invocations, and edit histories; and (iv) project files, code, and configuration to the extent submitted to or processed by Bolt AI Features. Bolt Model Development Content is determined by the Bolt AI Features through which the content is submitted or processed, regardless of the artificial-intelligence model, mode, or inference provider used to generate or process it. Content used solely through stackblitz.com or other non-Bolt Services, including the StackBlitz SDK and embeddable editor and the WebContainer API, is not Bolt Model Development Content and is not used for the purposes described in Section 3.5. If you use a project created or stored through StackBlitz with Bolt, only content submitted to or processed by Bolt AI Features, together with related Bolt interaction data, is Bolt Model Development Content.

“Forge Content” means Bolt Model Development Content submitted, generated, or processed while Forge is enabled for your account or the applicable project.

“Restricted Region Account” means an account that Stackblitz determines, based on billing address, account country, network location, and other information available to it, is located in the European Economic Area, the United Kingdom, or Switzerland. Where Stackblitz cannot determine an account’s location, it treats the account as a Restricted Region Account for purposes of Sections 3.5 and 3.6.

“Pricing Page” means the pricing pages for the Services located at https://stackblitz.com/pricing and https://bolt.new/pricing, together with any other page on the Sites that describes the plans, prices, features, usage allotments, or limits of a particular plan or offer, in each case as updated by Stackblitz from time to time. Where a plan or offer is described on its own page, that page is the Pricing Page for that plan or offer and controls over any conflicting description on another Pricing Page.

1.4 Fees, Subscription Plans, and Tokens

Stackblitz offers the Services under free and paid subscription plans, with the plans, prices, features, usage allotments, and limits for each product described on the Pricing Page, which is incorporated into these Terms by this reference. Subject to Section 3.6, prices may change from time to time; a price change for an existing paid subscription applies only from a later billing period, after advance notice to you.

Use of the AI Features is metered. Usage is consumed based on the processing performed by the AI Features, regardless of whether the resulting AI Output is satisfactory to you or must be regenerated, and consumed usage is non-refundable except where applicable law requires otherwise.

You can use the Services under a free or paid plan, as described on our Pricing Page. Paid plans are billed in advance on a monthly or annual basis and renew automatically unless you cancel before the renewal date in your account settings. Plan limits (for example, seats, features, or usage thresholds) are described on our Pricing Page and may change from time to time. Except where required by law, subscription fees are non-refundable. You authorize Stackblitz, through its third-party payment processor, to charge your payment method for each billing period until you cancel. Cancellation takes effect at the end of the then-current billing period. Fees may be exclusive of applicable taxes in some jurisdictions, which you may be responsible for paying.

Nothing in this Section 1.4 or these Terms limits any non-waivable rights you may have under applicable consumer protection laws, including any statutory withdrawal, cancellation, or refund rights available to consumers in your jurisdiction.

(a) Hyperlinks. Anyone may link to the Sites or to a public project on the Services, provided the link does not misrepresent your relationship with Stackblitz or use Licensor Marks except as permitted by Stackblitz’s brand guidelines.

(b) SDK and Embedding. Subject to these Terms and the applicable developer documentation (currently at developer.stackblitz.com), Stackblitz grants you a non-exclusive, non-transferable, revocable license to integrate the StackBlitz SDK and to embed the StackBlitz editor in your own websites and applications, on the plans and within the usage limits identified on the Pricing Page or in the developer documentation.

(c) WebContainer API. Use of the WebContainer API is subject to the license tiers, session limits, and other usage limits stated in the developer documentation (currently at webcontainers.io) and on the Pricing Page. Use in a production or commercial setting, or beyond the stated limits, requires an active plan or separate written license that includes it; contact hello@stackblitz.com to discuss licensing.

(d) Duration; Documentation. The rights in this Section 1.5 continue only while the applicable plan or license is active and terminate automatically when it expires or is terminated. The usage limits and technical requirements stated in the developer documentation are incorporated into these Terms, and Stackblitz may update them in accordance with Section 1.1.

2. ACCESS, USE AND RESTRICTIONS

2.1 Methods of Access

If provided a login and password, your login and password are unique to you and you may not share them with anyone else. Your account is personal to you and is licensed for use by a single, named individual user only. You may not share, sell, rent, lease, lend, sublicense, transfer, assign, or otherwise make your account available to, or permit it to be accessed or used by, any other person, and you may not allow more than one individual to access or use the Services under a single account. You may not use account sharing, credential sharing, concurrent logins, or any other means to circumvent or exceed any per-user, per-seat, usage, rate, or other limits applicable to the Services. Each individual who accesses or uses the Services must register for and use a separate account. Moreover, you are responsible for maintaining the confidentiality of any information you upload to the Sites or via the Services, and you are fully responsible for all activities that occur under your account. You agree to immediately notify Stackblitz by email at support@stackblitz.com of any unauthorized use of any such information or any other breach of security. Failure to comply with this section may result in immediate termination of access to the Sites and Services.

2.2 Compliance with Laws.

You shall use the Services in compliance with all applicable laws and regulations, including without limitation those related to data privacy, international communications, export, and the transmission of technical or personal data, consumer and child protection, obscenity or defamation.

2.3 Use Restrictions

You agree that you shall not (and shall not knowingly permit any third party to), directly or indirectly: (i) reverse engineer, decompile, disassemble, or otherwise attempt to discover the source code, object code, or underlying structure, ideas, or algorithms of the Services (except to the extent applicable laws specifically prohibit such restriction); (ii) modify, translate, or create derivative works based on the Services; (iii) copy, rent, lease, distribute, pledge, assign, or otherwise transfer or encumber rights to the Services; (iv) use the Services for the benefit of an unauthorized third party; (v) remove or otherwise alter any proprietary notices or labels from the Services, or any portion thereof; or (vi) use the Services to build an application, product or service that is competitive with any Stackblitz product or service.

You agree that you shall not (and shall not knowingly permit any third party to) take any action (including uploading, downloading, posting, submitting or otherwise distributing or facilitating distribution of any material through the Services) that: (i) infringes any patent, trademark, trade secret, copyright, right of publicity or other right of any other person or entity; (ii) is unlawful, threatening, abusive, harassing, defamatory, libelous, deceptive, fraudulent, invasive of another’s privacy, tortious, obscene, offensive, or profane; (iii) constitutes unauthorized or unsolicited advertising, junk or bulk e-mail (iv) contains software viruses or any other computer codes, files, or programs that are designed or intended to disrupt, damage, limit or interfere with the proper function of any software, hardware, or telecommunications equipment or to damage or obtain unauthorized access to any system, data, password or other information of Stackblitz or any third party; or (v) impersonates any person or entity, including any employee or representative of Stackblitz.

You also agree that you shall not: (i) interfere or attempt to interfere with the proper working of the Services or any activities conducted in connection with the Services; or (ii) bypass any measures Stackblitz may use to prevent or restrict access to the Services (or other accounts, computer systems or networks connected to the Services).

2.4 Acceptable Use Policy

Your access to and use of the Services is also subject to Stackblitz’s Acceptable Use Policy, available at https://stackblitz.com/acceptable-use-policy (the “Acceptable Use Policy” or “AUP”), which is incorporated into and forms a part of these Terms by this reference. The Acceptable Use Policy describes the content and conduct that is prohibited on or through the Services, including any artificial intelligence, code-generation, and application-hosting features. By accessing or using the Services, you represent that you have read the Acceptable Use Policy and agree to comply with it. Stackblitz may update the Acceptable Use Policy from time to time in accordance with Section 1.1, and your continued use of the Services after an updated Acceptable Use Policy becomes effective constitutes your acceptance of it.

Any violation of the Acceptable Use Policy constitutes a material breach of these Terms and may result in the immediate suspension or termination of your account in accordance with Section 1.2, without any export or retention period and without liability or refund. In the event of any conflict between the Acceptable Use Policy and these Terms with respect to permitted or prohibited use of the Services, the more restrictive provision shall control.

2.5 Eligibility; Minimum Age

You must be at least eighteen (18) years old, or the age of majority in your jurisdiction if higher, to access or use the Services. The Services are not directed to, and may not be used by, anyone under eighteen (18), and Stackblitz does not knowingly collect personal information from anyone under eighteen (18); if Stackblitz learns that a user does not meet the requirements of this Section 2.5, Stackblitz will terminate that user’s account and delete the associated personal information as required by applicable law. By accessing or using the Services, you represent and warrant that you meet these requirements.

3. INTELLECTUAL PROPERTY RIGHTS

3.1 Stackblitz Intellectual Property; Feedback

As between the parties, Stackblitz retains all intellectual property rights relating to the Services and Site Content. If you provide suggestions, ideas, enhancement requests, feedback, or recommendations relating to the Services (“Feedback”), you grant Stackblitz a perpetual, irrevocable, worldwide, royalty-free, sublicensable license to use and exploit the Feedback for any purpose, without attribution or compensation to you.

The Sites, Services and Site Content are protected by copyright, trademarks, database rights and other intellectual property rights. Use of the Sites or Services does not confer any ownership rights in any Stackblitz Intellectual property.

3.2 User Content; License to Stackblitz

As between you and Stackblitz, you retain all right, title, and interest in and to your User Content. You grant Stackblitz a worldwide, non-exclusive, royalty-free license to host, store, reproduce, modify, process, transmit, display, and distribute your User Content (including AI Input) solely as necessary to provide, maintain, secure, troubleshoot, and operate the Services; to detect, investigate, and prevent fraud, abuse, security incidents, and violations of these Terms or the Acceptable Use Policy; to perform quality assurance on individual interactions; to comply with applicable law; and to enforce these Terms and the Acceptable Use Policy. You represent and warrant that you have all rights, licenses, and permissions necessary to submit your AI Input and other User Content and to grant the license in this Section 3.2.

3.3 AI Output; Ownership

To the extent permitted by applicable law, and subject to your compliance with these Terms, Stackblitz assigns to you all of its right, title, and interest, if any, in and to the AI Output generated for you through the Services. This assignment is subject to (a) any third-party rights in the underlying artificial-intelligence models, training data, or outputs, and (b) the rights of other users. You acknowledge that, due to the nature of machine learning, the Services may generate the same or similar output for other users, and nothing in these Terms restricts any rights of other users in output independently generated for them. You further acknowledge that AI Output may not be protectable by copyright or other intellectual property rights, and Stackblitz makes no representation or warranty regarding the ownership, registrability, validity, or non-infringement of any AI Output.

3.4 No Reliance on AI Output

AI Output is generated by machine-learning systems and may be inaccurate, incomplete, insecure, outdated, or infringing of third-party rights. AI Output is provided for your convenience only, does not constitute professional, legal, medical, financial, or other advice, and is not a substitute for human review. You are solely responsible for reviewing, testing, and validating all AI Output before using, deploying, distributing, or otherwise relying on it, including for errors, security vulnerabilities, and open-source and other license compliance, and you must not rely on AI Output without appropriate human review in high-risk or sensitive contexts, including medical, legal, financial, employment, or safety-critical uses, as further described in the Acceptable Use Policy.

3.5 AI Training and Data Licensing; Controls

(a) AI Model Development License. Unless and until you opt out as described in Section 3.5(c), and subject to Sections 3.5(d)-(f), you grant Stackblitz a worldwide, non-exclusive, royalty-free, sublicensable, and transferable license to use, reproduce, process, adapt, modify, and create derivative works of your Bolt Model Development Content that is eligible under Section 3.5(d) to train, fine-tune, evaluate, benchmark, and improve artificial-intelligence models developed by or for Stackblitz. This license is separate from the operational license in Section 3.2 and applies only to the model-development uses described in this Section 3.5(a). The licenses in Sections 3.5(a) and 3.5(b) apply notwithstanding any confidentiality or non-use obligation that might otherwise apply to Bolt Model Development Content under these Terms or any other Stackblitz policy, subject to Section 3.5(h) and any separate written agreement that controls under these Terms.

(b) Dataset Licensing; De-Identification and Anonymization. Unless and until you opt out as described in Section 3.5(c), and subject to Sections 3.5(d)-(f), you grant Stackblitz a worldwide, non-exclusive, royalty-free, sublicensable, and transferable license to prepare, market, license, and distribute datasets derived from Bolt Model Development Content that is eligible under Section 3.5(d) to third parties, including for compensation (which some laws may characterize as a “sale”), for artificial-intelligence research and for the development, training, evaluation, and improvement of artificial-intelligence models. Before including eligible Bolt Model Development Content in a licensed dataset, Stackblitz will de-identify it and impose contractual restrictions on dataset recipients as described in the Privacy Policy.

(c) Opt-Out; Withdrawal. Except as provided in Section 3.6 with respect to Forge Content while Bolt Forge is enabled, you may opt out of the uses described in Sections 3.5(a) and 3.5(b) at any time, free of charge and regardless of your plan, through your account settings or by contacting privacy@stackblitz.com. Stackblitz implements opt-outs as described in the Privacy Policy. An opt-out or withdrawal does not, by itself, unwind processing completed before the request, models already trained, or datasets already delivered to licensees, but nothing in this Section limits any right or remedy available under applicable law or any action Stackblitz is required to take under applicable law. This Section does not limit the operational license in Section 3.2. No opt-out is required for a Restricted Region Account; see Section 3.5(e).

(d) Timing and Prospective Application. Bolt Model Development Content is eligible for the uses described in Sections 3.5(a) and 3.5(b) only if it is created or generated on or after October 7, 2026, except that Forge Content created or generated on or after September 14, 2026 is eligible if it is covered by a consent under Section 3.6 that you have not withdrawn. Stackblitz will not use eligible content for those purposes before October 7, 2026 or before these Terms take effect for you. Content generated before the applicable date is not eligible, even if it remains stored in your account. If, on or after the applicable date, you submit earlier content to Bolt AI Features (for example, by prompting Bolt within an existing project), the content submitted to or processed by Bolt AI Features at that time, together with the resulting AI Output and interaction data, is eligible. Nothing in this Section 3.5(d) limits the operational license in Section 3.2.

(e) European Economic Area, United Kingdom, and Switzerland. Stackblitz does not use Bolt Model Development Content associated with a Restricted Region Account, including Forge Content, for the purposes described in Section 3.5(a) or Section 3.5(b). The licenses in Sections 3.5(a) and 3.5(b) are not granted by, and Section 3.5(i) does not apply to, a Restricted Region Account. Whether an account is a Restricted Region Account is evaluated each time Bolt Model Development Content is selected for those purposes; Bolt Model Development Content selected while an account was not a Restricted Region Account may remain in use. Stackblitz will not extend the uses described in this Section 3.5 to Restricted Region Accounts without amending these Terms with the notice described in Section 1.1 and establishing a lawful basis under applicable law. Additional requirements for jurisdictions where applicable law requires consent or another lawful basis for a use described in this Section 3.5 are described in the Privacy Policy.This Section 3.5(e) does not limit Stackblitz’s use of your content to provide, secure, and support the Services as described in Section 3.2 and the Privacy Policy.

(f) Sensitive and Third-Party Personal Data. Stackblitz’s handling of special-category, sensitive, and children’s personal data in connection with this Section 3.5 is described in the Privacy Policy. You represent and warrant that you have all rights, licenses, and permissions necessary to grant the license in this Section 3.5 for your Bolt Model Development Content and agree not to submit third-party confidential information or personal information that you are not authorized to provide for these purposes.

(g) Privacy. Stackblitz’s collection, use, disclosure, de-identification, anonymization, and handling of data-subject rights in connection with this Section 3.5 are described in the Privacy Policy, which controls over this Section to the extent of any conflict concerning personal information.

(h) Excluded Accounts. This Section 3.5 does not apply to: (i) Bolt Model Development Content in accounts governed by a separate written agreement with Stackblitz that addresses the uses described in this Section, in which case that agreement controls; (ii) organization-managed accounts, including Teams and Enterprise workspaces; or (iii) Restricted Region Accounts, as provided in Section 3.5(e).

(i) Exercise of Rights. The licenses granted in this Section 3.5 are not conditioned on Stackblitz exercising them at any particular time. Whether and when Stackblitz exercises any use described in this Section 3.5 may vary, and Stackblitz may commence, pause, or resume any such use at any time, subject to Sections 3.5(c) through 3.5(h), except that Section 3.5(e) governs Restricted Region Accounts. Commencing or resuming a use described in this Section 3.5 is not a modification of these Terms and does not require the notice described in Section 1.1. Stackblitz may exclude any content from the uses described in this Section 3.5, in whole or in part and for any reason.

3.6 Bolt Forge

Bolt Forge (“Forge”) is available on the plans identified on the Pricing Page and is offered with the benefit described there (the “Forge Benefit”). You enable Forge by an affirmative action in the Services after being presented with a summary of, and a link to, these Terms of Service. Stackblitz will record the date, time, and version of the terms you accepted. By enabling Forge you grant Stackblitz the licenses in Sections 3.5(a) and 3.5(b) with respect to eligible Forge Content, expressly agree that Stackblitz may license de-identified datasets derived from Forge Content to third parties for compensation, and acknowledge that these uses are a condition of the Forge Benefit. The opt-out in Section 3.5(c) does not apply to Forge Content while Forge is enabled; you may stop using Forge by changing to another mode or plan (including a free plan) or withdraw your consent at any time as described in the Privacy Policy (stopping use of Forge does not by itself withdraw your consent for Forge Content already collected). Withdrawal does not unwind processing already completed except as required by applicable law. You agree not to submit content to Forge that is designed to corrupt, poison, or manipulate the models or datasets developed from Forge Content. For Restricted Region Accounts, Section 3.5(e) applies and the Forge Benefit is not conditioned on any data use. For a paid plan on which Forge is the only AI mode (currently Bolt Lite), for as long as your subscription remains active and in good standing without cancellation, lapse, or change of plan, Stackblitz will not increase the recurring subscription price you agreed to (excluding taxes); Stackblitz may still change the Forge models, features, or usage allotment, suspend or terminate your account under these Terms, make changes required by law or for security, stop offering the plan to new subscribers, or discontinue the Bolt Services as a whole with a pro-rated refund of prepaid fees. This Section controls over Section 3.5 for Forge Content.

4. WARRANTIES; DISCLAIMER

Each party represents and warrants to the other that: (a) it has full power and authority to grant rights or undertake obligations related to these Terms, (b) it has no outstanding obligations that conflict with these Terms, and (c) these Terms constitute a valid and legally binding obligation on that party that is enforceable in accordance with the terms of these Terms.

While Stackblitz endeavors to ensure that the information contained on the Sites is current, correct and complete, the Sites, Services and Site Content are provided “as is” and with no warranty, express or implied, given as to its currency, accuracy and completeness or that any specific results will be achieved.

The Services may display, link to, or allow you to install third-party products, services, packages, dependencies, and content, including content published by other users (“Third-Party Content”). Stackblitz does not control Third-Party Content, does not endorse it, and is not responsible for its accuracy, legality, security, or performance. Your use of Third-Party Content is at your own risk and subject to any terms that accompany it.

EXCEPT TO THE EXTENT REQUIRED BY LAW, STACKBLITZ DISCLAIMS ANY AND ALL EXPRESS OR IMPLIED WARRANTIES AND CONDITIONS INCLUDING, WITHOUT LIMITATION, WARRANTIES AND CONDITIONS AS TO MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. STACKBLITZ DOES NOT WARRANT THAT THE SITES, SERVICES OR SITE CONTENT (AS APPLICABLE) WILL BE UNINTERRUPTED OR ERROR FREE, THAT DEFECTS WILL BE CORRECTED OR THAT THE SITES, SERVICES OR SITE CONTENT (AS APPLICABLE) IS FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS. WITHOUT LIMITING THE FOREGOING, STACKBLITZ MAKES NO WARRANTY THAT ANY AI OUTPUT WILL BE ACCURATE, COMPLETE, SECURE, RELIABLE, OR NON-INFRINGING, AND YOU ASSUME ALL RISK ARISING FROM YOUR USE OF OR RELIANCE ON ANY AI OUTPUT.

5. INDEMNIFICATION

You agree to defend, indemnify, and hold harmless Stackblitz, its successors and assigns, and other third parties who contribute to the Sites from any loss, damage, or cost (including attorneys’ fees) resulting from your violation of the Terms.

6. LIMITATION OF LIABILITY

To the fullest extent permitted by applicable law, and subject to the last paragraph of this Section 6, Stackblitz disclaims all responsibility and assumes no liability for your use of any Site Content or Services made available to you free of charge, regardless of purpose.

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, AND SUBJECT TO THE LAST PARAGRAPH OF THIS SECTION 6: Stackblitz’s aggregate monetary liability to you for any reason and for any and all causes of action, whether in contract, tort, or otherwise, will not exceed the greater of $100 or the amount that you have paid to Stackblitz for the Services during the twelve (12) month period before the cause of action accrued. Stackblitz will not be liable to you under any cause of action, whether in contract, tort, or otherwise, for any indirect, special, incidental, consequential, or punitive damages, even if Stackblitz has been advised of the possibility of such damages. The limitations in this Section 6 apply to Stackblitz’s affiliates, licensors, suppliers, and service providers to the same extent as they apply to Stackblitz.

Nothing in these Terms excludes or limits either party’s liability for (a) death or personal injury caused by its negligence; (b) fraud or fraudulent misrepresentation; (c) willful misconduct; or (d) any other liability that cannot be excluded or limited under applicable law. If you are a consumer in the European Economic Area, the United Kingdom, or another jurisdiction whose mandatory law does not permit one or more of the limitations in this Section 6, those limitations apply to you only to the extent permitted by that law, and nothing in this Section 6 affects your non-waivable statutory rights as a consumer, including any right to a remedy for Services that do not conform to the contract.

7.1 Respect for Intellectual Property

Stackblitz respects the intellectual property rights of others and expects users of the Services to do the same. This Section 7 describes our policy and procedures for notices of claimed copyright infringement under the Digital Millennium Copyright Act, 17 U.S.C. § 512 (the “DMCA”), and is the “Copyright/DMCA Policy” referenced in the Acceptable Use Policy.

7.2 DMCA Notices; Designated Agent

If you believe that content made available on or through the Services infringes your copyright, you may submit a written notification to our designated agent that includes: (a) a physical or electronic signature of the copyright owner or a person authorized to act on the owner’s behalf; (b) identification of the copyrighted work claimed to have been infringed (or, if multiple works are covered by a single notification, a representative list of such works); (c) identification of the material claimed to be infringing and information reasonably sufficient to permit us to locate the material (such as a URL); (d) your name, address, telephone number, and email address; (e) a statement that you have a good-faith belief that use of the material in the manner complained of is not authorized by the copyright owner, its agent, or the law; and (f) a statement that the information in the notification is accurate and, under penalty of perjury, that you are authorized to act on behalf of the copyright owner.

Notices should be sent to dmca@stackblitz.com. Notices sent elsewhere may take longer to process. Upon receipt of a compliant notice, we will act expeditiously to remove or disable access to the material claimed to be infringing and will take reasonable steps to notify the user who posted it.Our Designated Copyright Agent:Danny Bronski, VeriTrademark1700 Westlake Ave N Ste 200, PMB 2203, Seattle, WA 98109-6212telephone: 206.588.5981

7.3 Counter-Notification

If material you posted was removed or disabled and you believe the removal was the result of mistake or misidentification, you may submit a written counter-notification to our designated agent that includes: (a) your physical or electronic signature; (b) identification of the material that was removed or disabled and the location at which it appeared before removal; (c) a statement, under penalty of perjury, that you have a good-faith belief the material was removed or disabled as a result of mistake or misidentification; and (d) your name, address, and telephone number, and a statement that you consent to the jurisdiction of the federal district court for the judicial district in which your address is located (or, if outside the United States, the Northern District of California) and that you will accept service of process from the person who provided the original notification or that person’s agent. Unless the original claimant files an action seeking a court order against you, we may restore the removed material in not less than ten (10) and not more than fourteen (14) business days after receipt of a compliant counter-notification.

7.4 Repeat Infringers

Stackblitz will, in appropriate circumstances, terminate the accounts of users who are determined to be repeat infringers, and reserves the right to remove content, suspend access, or terminate accounts in response to any single instance of infringement.

7.5 Misrepresentations

Under 17 U.S.C. § 512(f), any person who knowingly materially misrepresents that material is infringing, or that material was removed or disabled by mistake or misidentification, may be liable for damages, including costs and attorneys’ fees.

8. MISCELLANEOUS CLAUSES

8.1 Governing Law

Subject to Section 8.2(h) and any non-waivable law applicable to you, these Terms and any dispute or claim arising out of or relating to these Terms or the Services (including non-contractual disputes or claims) shall be governed by the laws of the State of California without regard to its conflict of laws provisions, except that the Federal Arbitration Act governs the interpretation and enforcement of Section 8.2.

8.2 Dispute Resolution; Binding Arbitration; Class Action Waiver

PLEASE READ THIS SECTION CAREFULLY — IT REQUIRES THAT MOST DISPUTES BE RESOLVED THROUGH BINDING INDIVIDUAL ARBITRATION AND WAIVES THE RIGHT TO A JURY TRIAL AND TO PARTICIPATE IN A CLASS ACTION. (a) Informal Resolution. Before initiating arbitration, the party asserting a dispute must send the other an individualized written notice describing the dispute and the relief sought (to Stackblitz: legal@stackblitz.com or the notice address in Section 8.8), and the parties will attempt in good faith to resolve the dispute within sixty (60) days; this Section 8.2(a) is a condition precedent to arbitration. (b) Arbitration. Except as provided in Section 8.2(d), any dispute arising out of or relating to these Terms or the Services will be finally resolved by binding arbitration administered by JAMS under its rules then in effect, including, where applicable, the JAMS Consumer Arbitration Minimum Standards. The arbitration will be conducted by a single arbitrator, in English, and may proceed by videoconference or, if an in-person hearing is required, in San Francisco, California or the county of your residence, at your election. Payment of filing, case-management, and arbitrator fees will be governed by the applicable JAMS rules and consumer standards. The arbitrator has exclusive authority to resolve any dispute relating to the interpretation, applicability, or enforceability of this arbitration agreement, and judgment on the award may be entered in any court of competent jurisdiction. (c) Class Action Waiver. Each party may bring claims against the other only in an individual capacity, and not as a plaintiff or class member in any purported class, collective, consolidated, or representative proceeding, and the arbitrator may not consolidate more than one person’s claims. If the waiver in this Section 8.2(c) is held unenforceable as to a particular claim, that claim (and only that claim) shall proceed in court under Section 8.3 and the remainder of this Section 8.2 shall remain in effect. (d) Exceptions. Either party may (i) bring an individual claim in small claims court, and (ii) seek injunctive or other equitable relief in a court of competent jurisdiction to protect its intellectual property rights or to address unauthorized access to the Services. (e) Mass Filings. If twenty-five (25) or more demands for arbitration presenting similar claims and represented by the same or coordinated counsel are filed against a party, the demands will be administered in accordance with the JAMS Mass Arbitration Procedures and Guidelines then in effect (or any successor procedures adopted by JAMS), to the extent consistent with the JAMS Consumer Arbitration Minimum Standards and applicable law, and the applicable JAMS mass-arbitration fee schedule will govern fees for those demands. Nothing in this Section 8.2(e) delays the filing or commencement of any demand, tolls or defers payment of any fee that applicable law requires a party to pay, requires mediation or any other step as a condition of proceeding with any demand, or limits the authority of JAMS or the arbitrator under the applicable rules. (f) Opt-Out. You may opt out of this arbitration agreement and class action waiver by emailing legal@stackblitz.com within thirty (30) days after first accepting these Terms (or, if your account predates the effective date of this Section 8.2, within thirty (30) days after that effective date), stating your name, the email associated with your account, and your intent to opt out; opting out will not affect any other provision of these Terms. (g) Jury Waiver. To the extent any dispute proceeds in court, each party waives, to the fullest extent permitted by law, any right to a trial by jury. (h) Consumers Outside the United States. If you are a consumer in the European Economic Area, the United Kingdom, or another jurisdiction whose mandatory law provides otherwise, nothing in this Section 8.2 deprives you of the protection of the mandatory consumer laws of your country of residence, including any right to bring proceedings in the courts of that country, and to the extent those laws do not permit pre-dispute arbitration agreements or class action waivers for consumers, Sections 8.2(b) and 8.2(c) do not apply to you.

8.3 Venue

Subject to Section 8.2(h) and any non-waivable venue rights applicable to you, for any dispute that is not subject to arbitration under Section 8.2 (including if you have validly opted out), the federal and state courts sitting in San Francisco, California, U.S.A. will have exclusive jurisdiction and venue, and each party consents to personal jurisdiction in those courts, except that either party may bring an eligible individual claim in small claims court.

8.4 Severability

If any provision of these Terms is found to be unenforceable or invalid, that provision will be limited or eliminated to the minimum extent necessary so that these Terms will otherwise remain in full force and effect and enforceable, except as provided in Section 8.2(c) with respect to the class action waiver.

8.5 Assignment

These Terms are not assignable, transferable or sublicensable by either party except with the other’s prior written consent, except that either party may transfer and assign any of its rights under these Terms without consent in connection with a reorganization, merger, consolidation, acquisition, or other restructuring involving all or substantially all of its voting securities or assets. These Terms will bind and inure to the benefit of the parties and their permitted successors and assigns; any attempted assignment in violation of this Section is void.

8.6 Entire Agreement; Amendment; Waiver

Except for a separate written agreement that controls under these Terms, these Terms (together with the policies and pages incorporated by reference) are the complete and exclusive statement of the mutual understanding of the parties concerning their subject matter and supersede prior written and oral agreements, communications, and understandings concerning that subject matter. These Terms do not supersede or amend any separate written agreement described above except as expressly provided in that agreement. All waivers and modifications must be in a writing signed by both parties, except as otherwise provided herein (including Section 1.1 regarding updates to these Terms). No failure or delay by either party in exercising any right under these Terms will operate as a waiver of that right, and no waiver will be effective unless made in writing.

8.7 Relationship of the Parties

No agency, partnership, joint venture, or employment is created by these Terms, and you do not have any authority of any kind to bind Stackblitz in any respect whatsoever.

8.8 Notices

Stackblitz may provide notices to you by email to the address associated with your account, by posting within the Services or on the Sites, or by mail, and such notices are deemed given when sent or posted. You may provide notices to Stackblitz by email to legal@stackblitz.com or by mail to StackBlitz, Inc., Attn: Legal, 1160 Battery Street, Suite 30W, San Francisco, CA 94111, and such notices are deemed given when receipt is confirmed (for email) or upon delivery (for mail or recognized overnight delivery service). You are responsible for keeping your account email address current.

8.9 Publicity

If you use the Services on behalf of an organization you grant Stackblitz the right to identify that organization as a customer of the Services, including by using its name and logo in customer lists and marketing materials, in a manner that does not suggest sponsorship or endorsement. You may revoke this permission at any time by written notice to legal@stackblitz.com, effective prospectively for materials created after Stackblitz’s receipt of the notice.

8.10 Force Majeure

Stackblitz will not be liable for any delay or failure to perform resulting from causes beyond its reasonable control, including acts of God, natural disasters, epidemics, war, terrorism, civil unrest, labor disputes, governmental action, power or internet failures, failures of hosting, network, or AI-model providers, or denial-of-service or similar attacks.

8.11 Export Controls; Sanctions

You may not access or use the Services in violation of any applicable export control or economic sanctions laws of the United States or any other applicable jurisdiction. You represent that you are not located in, organized under the laws of, or ordinarily resident in any country or region subject to comprehensive sanctions, and that you are not listed on any applicable restricted-party list.

8.12 U.S. Government End Users

The Services and Site Content are “commercial computer software” and “commercial computer software documentation” as those terms are used in FAR 12.212 and DFARS 227.7202. If you are a U.S. government end user, the Services are licensed to you only with the rights granted to all other users under these Terms.

8.13 Electronic Communications

You consent to receive communications from Stackblitz electronically, including by email and by notices posted within the Services, and you agree that all agreements, notices, disclosures, and other communications provided electronically satisfy any legal requirement that such communications be in writing. You further agree that any click-through acceptance, checkbox, or similar electronic action constitutes your valid signature and acceptance.

8.14 California Consumer Notice

Under California Civil Code § 1789.3, California users are entitled to the following notice: the Services are provided by StackBlitz, Inc., 1160 Battery Street, Suite 30W, San Francisco, CA 94111. The Complaint Assistance Unit of the Division of Consumer Services of the California Department of Consumer Affairs may be contacted in writing at 1625 North Market Blvd., Suite N 112, Sacramento, CA 95834, or by telephone at (800) 952-5210.

8.15 No Third-Party Beneficiaries

Except for the parties indemnified under Section 5, these Terms do not confer any rights or remedies on any person other than the parties.

8.16 Survival

Sections 1.3, 2.3, 3, 4, 5, 6, 7, and 8, and any other provision that by its nature should survive, will survive any termination or expiration of these Terms.

8.17 Interpretation; Headings

Headings in these Terms are for convenience only and will have no legal meaning or effect. As used in these Terms, “including” and its variants mean “including without limitation,” and “or” is not exclusive. These Terms will not be construed against either party as drafter.