LibreSign

Free and open-source electronic and digital signatures for PDFs and documents.

LibreSign helps organizations request, sign, track, and validate documents with configurable signing workflows. Manage signing order, include internal and external recipients, and keep a traceable record of each request. External recipients can sign without a Nextcloud account when the relevant identification and signing methods are enabled.

Use LibreSign's included API to integrate signature requests into an existing portal or business application without replacing its interface or processes. The API is part of the free software; access follows the installation's authentication, permissions, and signing policies.

LibreSign runs as a Nextcloud app and requires a compatible Nextcloud installation. You can self-host it or choose optional professional deployment services.

Key features

• Define signing order, roles, and rules per document flow
• Include internal and external signers in the same request
• Request and track signatures from start to completion
• Send notifications and reminders to signers
• Keep a traceable record of requests, actions, and validations
• Validate signed documents and certificate status
• Work directly with Nextcloud files, users, and sharing context
• Integrate signing with other systems through APIs

Why LibreSign

LibreSign is for teams where signing is part of a controlled business process.

• Define clear signing rules by role, stage, or document type
• Keep traceability for audits, legal checks, and internal reviews
• Align signing with existing approval and governance processes
• Adapt workflows to how your organization works instead of following fixed external models

Get started

• Community / self-hosted: Get LibreSign from the Nextcloud App Store and follow the official documentation for setup, API reference, integration examples, and release-specific guidance. The software and API have no license fee; you operate your installation.
• Business / professional services: Need managed deployment, technical support, or help integrating LibreSign with your systems? Explore business options or contact the LibreSign team. Professional services are optional.

Contributing

Contributions are welcome from developers, implementers, and teams that use LibreSign in production.

• See the current product direction: LibreSign Roadmap
• Report bugs or suggest improvements: Open an issue
• Start with simple tasks: Good first issues
• Help with translations: Transifex

Contributors

Thanks to all the people who contribute to LibreSign:

Screenshots

Sponsors

If your organization depends on LibreSign, please sponsor the project.

Sponsorship directly supports ongoing maintenance, reliable releases, better documentation, and long-term continuity for teams that rely on LibreSign in real workflows.

Support LibreSign: https://github.com/sponsors/LibreSign