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RubyMine vs VSCodium: catalog facts
RubyMine	VSCodium
Freemium Free for non-commercial use; commercial use requires a paid license.	Free Free and open source under the MIT licence.
Windows, macOS, Linux	Windows, macOS, Linux
Navigation built around Ruby and Rails projects Graphical debugger for Ruby and JavaScript	The same editor as VS Code, built from the same MIT-licensed source without Microsoft branding Telemetry is disabled in the default configuration
Commercial use requires a paid license Heavier than a general editor	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
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: MIT
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 20, 2026

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