The best alternatives to CotEditor are Atom Editor, Quill, and txt.edit. If these 3 options don't work for you, we've listed a few more alternatives below.
What do you think of CotEditor?
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At GitHub, we’re building the text editor we’ve always wanted: hackable to the core, but approachable on the first day without ever touching a config file. We can’t wait to see what you build with it.
Quill is a free, open source WYSIWYG editor built for the modern web. Completely customize it for any need with its modular architecture and expressive API.
A simple text editor for iOS & iPadOS. Supports many themes and has syntax highlighting for almost every code language on this planet. Comes with deep iOS/iPadOS integration (mouse support, keyboard shortcuts & Files integration).
BBEdit is the leading professional HTML and text editor for macOS. This award-winning product has been crafted to serve the needs of writers, Web authors and software developers, and provides an abundance of features for editing, searching, and manipulation of prose, source code,
and textual data.
A small plain text editor in the browser. Word, character and line count are displayed at the bottom of the editor, and everything is saved to local storage ✨