cocoa-chen / CotEditor

Lightweight Plain-Text Editor for macOS

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CotEditor is a lightweight plain-text editor for macOS.

Requirement: OS X Yosemite or higher

Web Site:

Mac App Store:

Source Code

Build Status License GitHub release

CotEditor is a pure document-based Cocoa application written in Swift.

Development Environment

  • macOS 10.12 Sierra
  • Xcode 8.2
  • Swift 3.0.1
  • Sandbox enabled

How to Build

  1. Install Carthage if you don't have it yet.
  2. On Terminal, move to the project root directory and run carthage update --platform macOS.
  3. Open CotEditor.xcworkspace in Xcode.
  4. build.


© 2005-2009 nakamuxu, © 2011, 2014 usami-k, © 2013-2017 1024jp.

The source code is distributed under the terms of the Apache License, Version 2.0. See the bundled LICENSE for details.


Lightweight Plain-Text Editor for macOS

License:Apache License 2.0


Language:Swift 44.2%Language:HTML 31.0%Language:C 21.4%Language:C++ 2.5%Language:CSS 0.5%Language:Ruby 0.2%Language:Shell 0.0%Language:Python 0.0%