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VSCodium vs RubyMine: catalog facts
VSCodium	RubyMine
Free Free and open source under the MIT licence.	Freemium Free for non-commercial use; commercial use requires a paid license.
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	Navigation built around Ruby and Rails projects Graphical debugger for Ruby and JavaScript
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	Commercial use requires a paid license Heavier than a general editor
Downloadable app	Downloadable app
Open source	Closed source
License: MIT	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 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.