Diagraff
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Licenses & Notices

Open-source attributions and trademark notices

Diagraff is built on open-source software. The Diagraff source code is released under the MIT License. The full, generated dependency attribution lives in the repository's NOTICES.md and THIRD_PARTY_LICENSES.md. Key components are summarized below.

Mermaid (diagram renderer)

Diagrams are rendered with Mermaid, the open-source JavaScript diagramming library, used under the MIT License. Mermaid renders entirely client-side in your browser. Diagraff serves its own copy of the unmodified Mermaid build from this site rather than loading it from a CDN, so Diagraff does redistribute it — unmodified — and reproduces the MIT notice below as that license requires.

Mermaid — The MIT License (MIT)

Copyright © 2014–2022 Knut Sveidqvist

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

View the canonical Mermaid license →

Mermaid Chart — independent third party

"Mermaid Chart" (mermaid.ai / mermaidchart.com) is operated by Mermaid Chart, Inc., a separate and independent company. Lorincz LLC and Diagraff are not affiliated with, sponsored by, endorsed by, or operated by Mermaid Chart, Inc.

Diagraff offers an optional import from Mermaid Chart that runs with your own Mermaid Chart account and credentials; your use of Mermaid Chart is governed by Mermaid Chart's own terms and privacy policy. We reference "Mermaid Chart" and "Mermaid" only to describe interoperability (nominative use). "Mermaid," "Mermaid Chart," and related logos are trademarks of their respective owners.

Typefaces

Diagraff serves its own copy of two open-source typefaces rather than loading them from a font CDN. Both are used under the SIL Open Font License 1.1, which permits the modification and redistribution described below provided this notice travels with them.

Martian Mono — SIL OFL 1.1

Copyright © 2021 The Martian Mono Project Authors (github.com/evilmartians/mono).

IBM Plex Sans — SIL OFL 1.1

Copyright © 2017 IBM Corp. with Reserved Font Name “Plex” (github.com/IBM/plex).

Both files shipped by Diagraff are modified: each upstream variable font has been instanced to a single width and weight and subset to the Latin character set to reduce page weight. No Reserved Font Name has been changed. The unmodified license text is served alongside each font at OFL-MartianMono.txt and OFL-IBMPlexSans.txt.

Other components

  • Lucide icons (ISC) — UI iconography, also served unmodified from this site rather than a CDN.
  • CairoSVG (LGPL-3.0) — server-side SVG→PDF conversion for PDF export.
  • Python/Flask server libraries and others — see the repository THIRD_PARTY_LICENSES.md for the full list and license texts.

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