Terms of Service

Last updated: January 2026

These Terms of Service govern your access to and use of Mermaid Viewer. By using the application you agree to be bound by these terms.

Eligibility and Account Security

You must have the legal authority to enter into these terms. You are responsible for maintaining the security of your devices and any credentials or API keys you choose to use within the app.

Acceptable Use

  • Do not misuse the service, interfere with others' use, or attempt to access systems without authorization.
  • Do not upload unlawful, infringing, or harmful content, including malicious code.
  • Respect intellectual property rights when creating or sharing diagrams.
  • Comply with all applicable laws, regulations, and third-party terms (for example, AI model providers).

Intellectual Property

Mermaid Viewer and its content, features, and functionality are owned by the project maintainers and licensed contributors. You retain ownership of diagrams and materials you create; by submitting content, you grant us a limited license to host and display it for the purpose of operating the service.

Service Availability and Changes

We aim for reliable, performant service but do not guarantee uninterrupted availability. Features may change or be discontinued at our discretion to improve the product.

Third-Party Services

The app may integrate third-party services (such as hosting, analytics, or AI providers). Your use of those services is subject to their terms and privacy practices, which we do not control.

Disclaimers

The service is provided on an "as is" and "as available" basis without warranties of any kind, whether express or implied, including merchantability, fitness for a particular purpose, or non-infringement.

Limitation of Liability

To the maximum extent permitted by law, we are not liable for indirect, incidental, special, consequential, or punitive damages, or any loss of data, profits, or revenue arising from your use of the service.

Indemnity

You agree to indemnify and hold harmless the project maintainers and contributors from claims, damages, or expenses arising from your use of the service or violation of these terms.

Termination

We may suspend or terminate access if you breach these terms or misuse the service. Upon termination, your right to use the service ceases immediately, but relevant provisions that by their nature should survive will remain in effect.

Changes to These Terms

We may update these terms to reflect product or legal changes. The updated version will be indicated by the "Last updated" date. Continued use after changes become effective constitutes acceptance.


Governing Law and Contact

These terms are governed by the laws applicable in your place of residence unless local law requires otherwise. For questions about these terms, contact our support team and we will respond within a reasonable timeframe.