Compare software

OpenSign vs PandaDoc: catalog facts
OpenSignPandaDoc
Freemium

The open-source software is free to self-host. A hosted plan is paid.

Freemium

A free trial is offered, and the fuller business features need a paid plan.

Web, Self-hosted Android, iOS, Web
  • Self-hostable, so signed documents and audit trails stay with you
  • Templates, signing order and an API for integration
  • Handles creation, approval, signing and payment in one place
  • Signing order, signer identity checks and notarization
  • Legal weight of signatures depends on your jurisdiction and configuration
  • Younger and less polished than the commercial services
  • Aimed at business teams rather than occasional personal use
  • Homepage pushes demos and trials over a clear free tier
Self-hosted, Web application Downloadable app, Web application
Open source Closed source
License not stated License not stated
Not stated if an account is needed Account needed
Not stated if it works offline Not stated if it works offline

Checked September 22, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.