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Theia IDE vs OpenVSCode Server: catalog facts
Theia IDE	OpenVSCode Server
Free Free and open source.	Free Free and open source.
Windows, macOS, Linux, Web	Linux, Web, Self-hosted
Runs VS Code extensions from Open VSX Available on desktop and online	Close to upstream VS Code Use the editor from any device with a browser
Uses Open VSX rather than the Microsoft extension marketplace Smaller user community than VS Code	You must run and secure the server yourself Some Microsoft-specific VS Code features and marketplace access differ from the official build
Downloadable app, Web application	Self-hosted
Open source	Open source
License not stated	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

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