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VSCodium vs RStudio: catalog facts
VSCodium	RStudio
Free Free and open source under the MIT licence.	Freemium The IDE is free; the Posit AI assistant is a paid add-on with a free trial.
Windows, macOS, Linux	Windows, macOS, Linux
The same editor as VS Code, built from the same MIT-licensed source without Microsoft branding Telemetry is disabled in the default configuration	Editor, console, data viewer and environment pane in one window Data frame viewer with sorting, filtering and histogram filters
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	Built around R; other languages are secondary AI assistant requires a paid subscription after the trial
Downloadable app	Downloadable app
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 23, 2026

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