Compare software

Theia IDEEclipse IDE
Free

Free and open source.

 Free

The open-source application is available without a license fee.

Windows, macOS, Linux, Web Windows, macOS, Linux
  • Runs VS Code extensions from Open VSX
  • Available on desktop and online
  • Huge plugin marketplace covering languages and domains other IDEs ignore
  • Entirely open source and free for commercial use
  • Uses Open VSX rather than the Microsoft extension marketplace
  • Smaller user community than VS Code
  • The workspace and perspective model feels dated and confuses newcomers
  • Plugin quality varies widely and conflicts are common
Downloadable app, Web application Downloadable app
Open source Open source
License not stated License: EPL-2.0
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 September 23, 2026

Checked September 22, 2026

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