Policies
Everything that governs your use of Diagrams.so, in one place. Diagrams.so is operated by RedHold LLC, 8401 Mayland Dr, STE S, Richmond, VA 23294, USA.
| Document | What it covers | Effective date |
|---|---|---|
| Terms of Service | The agreement for the website, app, API, MCP server, and SDKs | September 15, 2026 |
| Acceptable Use Policy | What you may not do with the Services | September 15, 2026 |
| Privacy Policy | What we collect, why, and your rights | September 15, 2026 |
| Cookie Notice | Cookies and similar technologies on the website | September 15, 2026 |
| How Diagrams.so Uses AI | AI-generated content, verification, and our providers | September 15, 2026 |
| Subprocessor List | The vendors that help us provide the Services | September 15, 2026 |
| Data Processing Addendum | Terms for business customers whose content includes personal data | September 15, 2026 |
| Refunds and Billing Policy | Credits, cancellation, the 14-day guarantee, and refunds | September 15, 2026 |
| Service Level and Support | Support channels and what availability to expect | September 15, 2026 |
| API Deprecation and Versioning | How the API evolves and how retirements are handled | September 15, 2026 |
| Copyright and Content Complaints | Reporting infringing or unlawful content | September 15, 2026 |
| Trademark Policy | Using the Diagrams.so name and logo | September 15, 2026 |
| Vulnerability Disclosure Policy | Reporting security issues, with safe harbor | September 15, 2026 |
Security researchers can also find us through /.well-known/security.txt.
Contacts
- Support and general questions: support@diagrams.so
- Legal notices: legal@diagrams.so
- Privacy requests: privacy@diagrams.so
- Copyright complaints: dmca@diagrams.so
- Security reports: security@diagrams.so
Changes
When a document changes materially, we update its effective date and give notice as that document describes. Dated entries appear here.
- September 15, 2026: First publication of this policy set, replacing the February 2026 Terms of Use, Privacy Policy, and Acceptable Use Policy.