head to head · open source
CryptPad vs open-pdf-studio
CryptPad has 8,052 GitHub stars, 879 forks, 401 open issues and last shipped yesterday. open-pdf-studio has 1,005 stars, 102 forks, 59 open issues and last shipped yesterday. CryptPad leads on adoption by 701% (8,052 vs 1,005 stars). CryptPad is written in JavaScript under AGPL-3.0; open-pdf-studio is written in HTML under LGPL-3.0. CryptPad has attracted 11% as many forks as stars, open-pdf-studio 10%. CryptPad was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| CryptPad | open-pdf-studio | |
|---|---|---|
| GitHub stars | ★ 8.1K | ★ 1.0K |
| License | AGPL-3.0 | LGPL-3.0 |
| Written in | JavaScript | HTML |
| Last push | 2026-11-06 | 2026-11-06 |
| Forks | ⑂ 879 | ⑂ 102 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick CryptPad if
- You weight community size — 8.1K stars and counting
- You want the AGPL-3.0 license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick open-pdf-studio if
- You want the open-pdf-studio feature set and don't need the biggest community
- You prefer the LGPL-3.0 license terms
- Your stack matches HTML
- You evaluated both and open-pdf-studio fits your workflow better
About CryptPad
CryptPad CryptPad is a collaboration suite that is end to end encrypted and open source. It is designed to facilitate collaboration by synchronizing changes to documents in real time. Since all the user data is encrypted, in the event of a breach, attackers have no way of accessing the stored content. Furthermore, if the administrators do not modify the code, they and the service also cannot access any information about the users' content. Installation For development Our developer guide provides instructions for setting up a local instance without HTTPS or our more advanced security features. For production…
read the full CryptPad overview →
About open-pdf-studio
English · Nederlands Open PDF Studio A free, open source PDF editor for people who work with drawings: markup, measuring to scale, revision compare and CAD import, on Windows, macOS, Linux, Android and in the browser. Try in your browser · Download Open PDF Studio is a PDF editor for architects, engineers, contractors and everyone else who reviews drawings and documents. You mark up, measure with the scale the drawing carries, compare revisions, place symbols, count quantities and organise pages, with no subscription, account or watermark. It runs as a desktop app on Windows, macOS and Linux, as an Android app…
read the full open-pdf-studio overview →
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Frequently asked questions
Is CryptPad or open-pdf-studio more popular?
CryptPad has 8,052 GitHub stars and open-pdf-studio has 1,005. CryptPad has the larger community by that measure.
Are CryptPad and open-pdf-studio free?
Both are open source. CryptPad is licensed under AGPL-3.0 and open-pdf-studio under LGPL-3.0. Neither carries a licence fee.
What is the difference between CryptPad and open-pdf-studio?
CryptPad is written in JavaScript and open-pdf-studio in HTML. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, CryptPad or open-pdf-studio?
Choose CryptPad if you want the larger community (8,052 stars) or its AGPL-3.0 licence terms. Choose open-pdf-studio if its feature set, stack or LGPL-3.0 licence fits better. Both are self-hostable.