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CotEditor vs mi: catalog facts
CotEditor	mi
Free Free and open source.	Free Free to use.
macOS	macOS
Native macOS interface and fast launch Syntax highlighting for over 60 languages	Free, actively updated with recent security fixes Universal build for Apple Silicon and Intel Macs
macOS only A text editor rather than a full IDE	Website and documentation are in Japanese macOS only
Downloadable app	Downloadable app
Open source	Closed source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 1, 2026

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