https://github.com/coteditor/CotEditor

Lightweight Plain-Text Editor for macOS
https://github.com/coteditor/CotEditor

cocoa coteditor editor mac-app macos macos-app swift texteditor

Last synced: 27 days ago
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Lightweight Plain-Text Editor for macOS

• Host: GitHub
• URL: https://github.com/coteditor/CotEditor
• Owner: coteditor
• License: other
• Created: 2013-04-05T14:51:28.000Z (about 12 years ago)
• Default Branch: main
• Last Pushed: 2024-10-29T12:52:19.000Z (6 months ago)
• Last Synced: 2024-10-29T15:09:40.396Z (6 months ago)
• Topics: cocoa, coteditor, editor, mac-app, macos, macos-app, swift, texteditor
• Language: Swift
• Homepage: https://coteditor.com
• Size: 191 MB
• Stars: 6,411
• Watchers: 120
• Forks: 430
• Open Issues: 84
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • Contributing: CONTRIBUTING.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE
  • Code of conduct: CODE_OF_CONDUCT.md
  • Codeowners: .github/CODEOWNERS

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README

        
# CotEditor

CotEditor is a lightweight plain-text editor designed for macOS. The project aims to provide a general plain-text editor for everyone with an intuitive macOS-native user interface.

- __Requirement__: macOS 14 Sonoma or later

- __Web Site__: 

- __Mac App Store__: 

- __Languages__: English, Czech, Dutch, French, German, Italian, Japanese, Korean, Polish, Portuguese, Spanish, Simplified Chinese, Traditional Chinese, and Turkish

![screenshot](screenshot@2x.png)

## Source Code

CotEditor is a purely macOS native application written in Swift. It adheres to Cocoa's document-based application architecture and respects the power of `NSTextView`.

### Development Environment

- macOS 15 Sequoia

- Xcode 16.3

- Swift 6.1 (partly in Swift 5 mode)

- Sandbox and hardened runtime enabled

## Contribution

CotEditor has its own contributing guidelines. Read [CONTRIBUTING.md](CONTRIBUTING.md) through before you create an issue or make a pull request.

## How to Build

### Build for Ad-hoc usage

For those people who just want to build and play with CotEditor locally.

1. Open `CotEditor.xcodeproj` in Xcode.

1. Change to ad-hoc build mode:

    1. Open `Configurations/CodeSigning.xcconfig`.

    1. Comment out `#include "CodeSigning-Default.xcconfig"`.

    1. Uncomment `#include "CodeSigning-AdHoc.xcconfig"`.

1. Build “CotEditor” scheme.

### Build for distribution

1. Open `CotEditor.xcodeproj` in Xcode.

1. Build “CotEditor” scheme.

## License

© 2005-2009 nakamuxu,

© 2011, 2014 usami-k,

© 2013-2025 1024jp.

The source code is licensed under the terms of the __Apache License, Version 2.0__. The image resources are licensed under the terms of the [__Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License__](https://creativecommons.org/licenses/by-nc-nd/4.0/). See [LICENSE](LICENSE) for details.