CotEditor for Mac OS X 3.9.7

CotEditor is exactly made for macOS. It looks and behaves just as macOS applications should. CotEditor launches so quick that you can write your text immediately when you want to. CotEditor is developed as an open-source project that allows anyone to contribute.


Syntax Highlighting

Colorize more than 50 pre-installed major languages like HTML, PHP, Python, Ruby or Markdown. You can also create your own settings.

Powerful Find & Replace

Super powerful find and replace using the ICU regular expression engine.

Setting via Click

There are no complex configuration files that require geek knowledge. You can access all your settings including syntax definitions and themes from a standard preferences window.

Auto Backup

You don't need to lose your unsaved data anymore. CotEditor backups your documents automatically while editing.

Outline Menu

Extract specified lines with the predefined syntax, and you can jump to the corresponding line.

Split Editor

Split a window into multiple panes to see different parts of your document at the same time.

Character Inspector

Inspect Unicode character data of each selected character in your document and display them in a popover.


Make your own macro in your favorite language, whether it is Python, Ruby, Perl, PHP, UNIX shell, AppleScript or JavaScript.

Incompatible Characters

Check and list-up the characters in your document that cannot convert into the desired encoding.

CJK Language Friendly

Estimate various file encodings accurately, toggle to vertical text mode and keep its line height correctly.

Author The CotEditor Project
License Open Source
Price FREE
Released 2020-10-19
Downloads 37
Filesize 16.90 MB
Installation Instal And Uninstall
Keywords Code editor, Syntax highlight, Edit source code, Code, Editor, HTML, Java
Users' rating
(7 rating)
CotEditor for Mac OS X - Download Notice

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CotEditor for Mac OS X - The Latest User Reviews

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