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Zed vs Theia IDE: catalog facts
Zed	Theia IDE
Freemium The editor is free and open source. Zed's hosted AI plans are paid, and you can use your…	Free Free and open source.
Windows, macOS, Linux	Windows, macOS, Linux, Web
GPU-rendered and written in Rust, so it stays responsive under load Real-time collaborative editing and a shared terminal	Runs VS Code extensions from Open VSX Available on desktop and online
A much smaller extension ecosystem than VS Code Windows support arrived late and is still the least mature build	Uses Open VSX rather than the Microsoft extension marketplace Smaller user community than VS Code
Downloadable app	Downloadable app, Web application
Open source	Open source
License: GPL-3.0-or-later	License not stated
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked September 23, 2026

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