head to head · open source
OpenSign vs signaturepdf
OpenSign has 7,254 GitHub stars, 856 forks, 148 open issues and last shipped 3 days ago. signaturepdf has 837 stars, 113 forks, 69 open issues and last shipped 22 days ago. OpenSign leads on adoption by 767% (7,254 vs 837 stars). OpenSign is written in JavaScript under a custom or non-standard licence; signaturepdf is written in JavaScript under AGPL-3.0. OpenSign has attracted 12% as many forks as stars, signaturepdf 14%. OpenSign 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
| OpenSign | signaturepdf | |
|---|---|---|
| GitHub stars | ★ 7.3K | ★ 837 |
| License | Custom / other | AGPL-3.0 |
| Written in | JavaScript | JavaScript |
| Last push | 2026-11-10 | 2026-10-22 |
| Forks | ⑂ 856 | ⑂ 113 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick OpenSign if
- You weight community size — 7.3K stars and counting
- You want the Custom / other license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick signaturepdf if
- You want the signaturepdf feature set and don't need the biggest community
- You prefer the AGPL-3.0 license terms
- Your stack matches JavaScript
- You evaluated both and signaturepdf fits your workflow better
About OpenSign
The free and open source alternative to DocuSign Website • Help Docs • API Docs • Blog • Discord • Twitter • LinkedIn The premier open source document signing solution(DocuSign alternative) Table of Contents 1. Introduction 2. Features 3. Installation 4. Usage 5. Contribution Guidelines 6. License 7. Acknowledgments Please star ⭐ the repo to support us! 😀 Introduction Welcome to OpenSign, the premier open source docusign alternative document e signing solution designed to provide a secure, reliable and free alternative to commercial esign platforms like DocuSign, PandaDoc, SignNow, Adobe Sign, Smartwaiver…
read the full OpenSign overview →
About signaturepdf
Signature PDF Free web software for signing (alone or with others), organizing (merge, sort, rotate, delete, extract pages, ...), editing metadatas or compressing PDFs. Instances List of instances where you can use this software: pdf.24eme.fr (by 24eme) pdf.libreon.fr (by Libreon) signature.pdf.hostux.net (by Hostux) pdf.nebulae.co (by Nebulae) pdf.kaosx.ovh pdf.ti nuage.fr (by Ti Nuage) pdf.cemea.org (by Les Ceméa) pdf.caph.info (by caph.info) pdf.spirio.fr (by Spirio.fr) pdf.sequanux.org (by Sequanux) pdf.deblan.org (by Deblan) pdf.ouvaton.coop (by OUVATON) signpdf.liber it.fr (by Liber IT)
read the full signaturepdf overview →
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Frequently asked questions
Is OpenSign or signaturepdf more popular?
OpenSign has 7,254 GitHub stars and signaturepdf has 837. OpenSign has the larger community by that measure.
Are OpenSign and signaturepdf free?
Both are open source. OpenSign has no licence declared in this registry, and signaturepdf is licensed under AGPL-3.0. Both are free to self-host.
What is the difference between OpenSign and signaturepdf?
OpenSign is written in JavaScript and signaturepdf in JavaScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, OpenSign or signaturepdf?
Choose OpenSign if you want the larger community (7,254 stars) or its Custom / other licence terms. Choose signaturepdf if its feature set, stack or AGPL-3.0 licence fits better. Both are self-hostable.