Lightweight Plain-Text Editor for macOS


CotEditor is a lightweight plain-text editor for macOS.

Source Code

Build Status GitHub release

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

Development Environment

  • macOS 10.14 Mojave
  • Xcode 10.1
  • Swift 4.2
  • Sandbox enabled

How to Build

  1. git submodule update --init
  2. Update frameworks (you can skip this process if you only wanna build).
    1. carthage update --platform macOS
    2. Build Sparkle's XPCs by running "Sparkle XPCs" scheme in CotEditor.xcworkspace
  3. Open CotEditor.xcworkspace in Xcode.
  4. Build.


© 2005-2009 nakamuxu, © 2011, 2014 usami-k, © 2013-2018 1024jp.

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