Compare software

OpenSignairSlate SignNow
Freemium

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

 Paid

Paid plans with a free trial that does not require a credit card.

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
  • Signing and sending for signature from a browser or phone
  • Templates and bulk sending
  • Legal weight of signatures depends on your jurisdiction and configuration
  • Younger and less polished than the commercial services
  • Paid service after the trial
  • Documents are stored with a hosted provider
Self-hosted, Web application Downloadable app, Hosted service
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.