Open-source licenses and fonts
Last updated: 15 October 2026 · Joy uses open-source libraries and free fonts. All are under permissive licenses that allow commercial use; the copyright notices stay inside the files themselves. Joy’s own code is not under an open-source license.
PDF.js 3.11.174 (Mozilla)
License: Apache License 2.0 · Source: github.com/mozilla/pdf.js
pdf-lib 1.17.1 · @cantoo/pdf-lib 2.11.1
License: MIT · Source: github.com/Hopding/pdf-lib
SheetJS Community Edition 0.20.3
License: Apache License 2.0 · Source: sheetjs.com
Supabase JavaScript client 2.117.1
License: MIT · Source: github.com/supabase/supabase-js
Mammoth 1.6.0
License: BSD 2-Clause · Source: github.com/mwilliamson/mammoth.js
html2canvas 1.4.1
License: MIT · Source: github.com/niklasvh/html2canvas
Tesseract.js 5.1.0
License: Apache License 2.0 · Source: github.com/naptha/tesseract.js
heic2any 0.0.4
License: MIT · Source: github.com/alexcorvi/heic2any
pako 1.0.11
License: MIT and Zlib · Source: github.com/nodeca/pako
UTIF.js 3.1.0
License: MIT · Source: github.com/photopea/UTIF.js
qrcode-generator 1.4.4 (Kazuhiko Arase)
License: MIT · Source: github.com/kazuhikoarase/qrcode-generator
@netlify/blobs (server)
License: MIT · Source: github.com/netlify/primitives
Heebo · Assistant · Poppins · Roboto · Noto Sans Arabic · Amatic SC · Caveat · Dancing Script (Google Fonts)
License: SIL Open Font License 1.1 (as published on Google Fonts) · Source: fonts.google.com
@pdf-lib/fontkit 1.1.1
License: MIT · Source: github.com/Hopding/fontkit
Yjs 13.6 · y-prosemirror 1.3 · y-protocols · lib0 · ProseMirror (model, state, view, transform, commands, keymap, schema-list)
License: MIT · Source: github.com/yjs/yjs · prosemirror.net
Noto Sans Hebrew 3.001 (Google)
License: SIL Open Font License 1.1 · Source: github.com/notofonts/hebrew
Icons
The icons in the app were drawn for Joy.