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✦ Free & open sourceLegal

Documenso

An open-source digital document signing platform and DocuSign alternative built with TypeScript and PostgreSQL.

Self-hosted electronic document signing platform

Sign PDF documents securely using open-source infrastructure you control completely.

Free forever · open source · AGPL-3.0
✓ Needs IT✓ Browser-based✓ Real-time collaboration
7.8
ZEKAI
Top open DocuSign alternative
Free & open source · Legal
Ease of setup5
Usefulness8
Maintenance9.5
Community8.5
★ 14,952
GITHUB
Sep 2026
UPDATED
AGPL-3.0
LICENSE
🛠 Don't want to self-host? We can set it up →
⚡ Quick answer

Documenso is an open-source document signing tool designed as a self-hostable alternative to commercial e-signature platforms like DocuSign. Legal professionals can sign contracts and agreements while retaining full control over document storage and signature audit logs. It suits teams that need verifiable digital signature workflows without vendor lock-in.

Runs on
Web
Hosting
Cloud or self-host
Languages
TypeScript
License
AGPL-3.0

What it is

The platform processes PDF documents and applies digital signatures adhering to standards like PAdES using dedicated TypeScript PDF libraries. It provides a web interface for document uploads, signature field positioning, recipient tracking, and notification handling. Organizations can run it on their own servers or use the hosted cloud platform.

Who it's for

It suits legal teams, law firms, and corporate legal departments that require strict data sovereignty or custom database integration for executed contracts. It is less suitable for solo practitioners who lack technical resources to maintain PostgreSQL databases, S3 object storage, and Docker containers.

Key features

PAdES standard digital signatures

Applies verifiable PDF signatures using specialized core PDF cryptography libraries.

Multi-provider deployment options

Runs locally or deploys through Docker Compose, Kubernetes, or Railway environments.

Built-in email notification system

Integrates transactional mail delivery and local testing servers for signing requests.

Role and enterprise controls

Offers multi-tenant setup options and paid enterprise tiers for custom organization needs.

How to start

Up and running in 3 steps

1
Clone the repository and duplicate the example environment configuration file to .env.
2
Run npm run dx to launch PostgreSQL, Inbucket mail server, and local storage containers in Docker.
3
Execute npm run dev to start the application interface on your local network.
Real talk

Our honest verdict

What's great

  • Full code transparency allows security auditing of cryptographic signing routines.
  • Supports standard deployment tools including Docker Compose, Kubernetes, and Railway.
  • Includes local development tooling with integrated mail sandbox and S3 storage containers.
  • Eliminates per-document signing fees associated with proprietary SaaS platforms.

Where it falls short

  • Requires ongoing server maintenance, PostgreSQL database management, and S3-compatible storage.
  • External open-source code contributions via pull requests are currently paused by the core team.
  • Demands Node.js 24+ and technical expertise to configure environment variables and mail gateways.
Cost

Pricing & license

Documenso is free to host under the AGPL-3.0 license, though you must pay for your own hosting, database, and email delivery infrastructure. A managed cloud service is available at documenso.com, along with bespoke Enterprise plans for larger organizations.

Paid work

Open remote AI-training roles

880 open remote AI-training roles, updated November 15, 2026; most pay $20–$175 an hour. Zekai lists them free; the application goes to the employer’s platform.

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Questions

FAQ

Can I host Documenso on my own infrastructure?

Yes, you can deploy Documenso using Docker Compose, Kubernetes, Railway, or manual server installations.

Does Documenso support PAdES signature standards?

Yes, Documenso uses specialized PDF libraries to generate PAdES-compliant digital signatures.

Is external code contribution allowed?

The project has paused external pull requests, accepting contributions primarily through bug reports and feature requests.

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