Documenso vs OpenSign: Open Source E-Signature Compared
Documenso vs OpenSign: Open Source E-Signature Compared
Two open source DocuSign alternatives, both aiming to make digital signatures free and self-hostable. Documenso is the more polished, developer-friendly option. OpenSign takes a broader feature approach. Here's how they compare.
Quick Verdict
Choose Documenso for the best signing experience and developer-friendly API — modern UI, clean codebase, and strong TypeScript foundation. Choose OpenSign for more features out of the box — templates, contact management, and a wider feature set.
The Comparison
| Feature | Documenso | OpenSign |
|---|---|---|
| Stack | Next.js, TypeScript, Prisma | React, Node.js, MongoDB |
| Signing experience | ✅ (polished) | ✅ (functional) |
| Templates | ✅ | ✅ |
| Multiple signers | ✅ | ✅ |
| Signing order | ✅ | ✅ |
| Field types | Signature, text, date, checkbox | Signature, text, date, checkbox, dropdown |
| Contact management | Basic | ✅ |
| Bulk sending | ❌ | ✅ |
| API | ✅ (REST, well-documented) | ✅ (REST) |
| Webhooks | ✅ | ✅ |
| Email notifications | ✅ | ✅ |
| Audit trail | ✅ | ✅ |
| Completion certificate | ✅ | ✅ |
| Embedding | ✅ (React component) | Limited |
| Mobile friendly | ✅ | ✅ |
| Self-hosted | ✅ (Docker) | ✅ (Docker) |
| Cloud option | Documenso Cloud | OpenSign Cloud |
| Stars | 9K+ | 3K+ |
| License | AGPL-3.0 | AGPL-3.0 |
When to Choose Documenso
- Best signing UX matters
- Developer-friendly API and SDK
- React embedding for your app
- TypeScript/Next.js ecosystem fits your stack
- Cleaner, more modern codebase
- Larger community (3x the GitHub stars)
- You value polish over feature breadth
When to Choose OpenSign
- More field types needed (dropdowns)
- Bulk sending is important
- Built-in contact management
- Wider feature set out of the box
- MongoDB fits your existing stack
- More flexible document handling
The Bottom Line
Documenso is the more polished option — better UX, cleaner code, larger community, and a developer-friendly API with embeddable components. For most teams, it's the better choice.
OpenSign has more features (bulk sending, contact management, more field types) but with less polish. Choose it if those specific features matter more than overall UX quality.
Both are AGPL-3.0, both are actively maintained, and both save you from $25+/user/month DocuSign pricing.
Compare e-signature tools on OSSAlt — features, API coverage, and community health side by side.