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VSCodium vs OpenVSCode Server: catalog facts
VSCodium	OpenVSCode Server
Free Free and open source under the MIT licence.	Free Free and open source.
Windows, macOS, Linux	Linux, Web, Self-hosted
The same editor as VS Code, built from the same MIT-licensed source without Microsoft branding Telemetry is disabled in the default configuration	Close to upstream VS Code Use the editor from any device with a browser
Extensions come from Open VSX, so a few marketplace-only extensions are missing Microsoft’s proprietary extensions, including the C# debugger and Remote Development, are not licensed for it	You must run and secure the server yourself Some Microsoft-specific VS Code features and marketplace access differ from the official build
Downloadable app	Self-hosted
Open source	Open source
License: MIT	License not stated
No account needed	No account needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 24, 2026

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