WHAT IS IT?
Documenso is an open-source document signing platform positioned as an alternative to DocuSign. You send a PDF document, signers receive a link, sign online and everyone gets the signed document back. The code is open, auditable, and you can self-host the entire thing on your own infrastructure.
WHY IS IT INTERESTING?
- Open source and auditable : the code is public under AGPL-3.0, you can verify exactly how your signatures and documents are processed
- Self-hostable : deploy via Docker, Railway, Render or Koyeb — your documents don't go through third-party infrastructure if you don't want them to
- Modern stack : React Router, Prisma, Tailwind CSS, shadcn/ui and tRPC for type-safe APIs — a pleasant project to extend and maintain
- Native PDF signing : dedicated @documenso/pdf-sign package for digital PDF signatures, not just an image pasted on a document
- API-first : tRPC architecture that lets you integrate document signing into your own application workflows
- Flexible deployment : one-click deploy on multiple cloud platforms or manual install for custom environments
USE CASES
- Signing commercial contracts without relying on expensive proprietary SaaS
- Internal document validation workflows with transparent audit trail
- Integrating electronic signatures into a business application via the API
- Companies with data sovereignty constraints that cannot use DocuSign
- Legal teams that need full traceability over the signing process