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Theia IDE vs Trae: catalog facts
Theia IDE	Trae
Free Free and open source.	Freemium Free to download, with paid plans for heavier AI use.
Windows, macOS, Linux, Web	Windows, macOS
Runs VS Code extensions from Open VSX Available on desktop and online	AI chat and agent modes built into the editor Separate TraeWork assistant for non-coding tasks
Uses Open VSX rather than the Microsoft extension marketplace Smaller user community than VS Code	AI features depend on a remote service Little technical detail published on the homepage
Downloadable app, Web application	Downloadable app
Open source	Closed source
License not stated	License: Proprietary
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
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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