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CotEditor is an open-sourced, Cocoa-based plain-text editor for OS X. It supports syntax highlighting, powerful find-and-replace with OniGmo (regular expression engine), and other small goodies for coding. It can handle also CJK languages well.

What's New

Version 2.5.1:
  • Change underline style of outline items.
  • Update "JavaScript" syntax style:
    • Improve outline definitions to support the class syntax sugar introduced in ECMAScript 6.
    • Better coloring for "get" and "set".
  • Fix an issue where application could crash on opening empty file.
  • Fix an issue more...


  • OS X 10.8 or later

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5 13


Current Version (2.x)


Downloads 11,979
Version Downloads 154
License Free
Date 25 Apr 2016
Platform Intel 64 / OS X
Price Free
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