Compare software

Zen FlowchartWhimsical
Freemium

Free to start, with an optional paid upgrade.

 Freemium

Free to start, with paid plans for more features.

Web Web
  • Very simple interface with one-click node creation
  • Real-time collaboration with view, comment and edit roles
  • Diagrams and wireframes in one tool
  • Real-time editing with comments
  • Deliberately limited feature set compared with full diagram suites
  • Works online only
  • Boards are stored in Whimsical's cloud
  • Some features are in paid plans
Web application Downloadable app, Web application
Closed source Closed source
License not stated License not stated
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 2, 2026

Checked September 23, 2026

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