CotEditor

A free, open-source plain-text and code editor made for macOS.

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About CotEditor

CotEditor is a lightweight text editor built for macOS that looks and behaves like a standard Mac application. It launches quickly and includes syntax highlighting for more than 60 languages, find and replace with ICU regular expressions, split panes, an outline menu and a character inspector for Unicode details.

Settings, themes and syntax definitions are all changed from a normal settings window rather than configuration files, and documents are backed up automatically while you edit. It is scriptable and available from the Mac App Store.

Strengths

  • Native macOS interface and fast launch
  • Syntax highlighting for over 60 languages
  • Regular-expression find and replace
  • All settings available through a settings window

Limitations

  • macOS only
  • A text editor rather than a full IDE

Details

Pricing
FreeFree and open source.
License
Open source, license not stated
Platforms
macOS
How it runs
Downloadable app
Account
Not required
Works offline
Yes
Best suited for
Mac users who want a quick, native editor for text and code
Categories
Code editors
Last verified
Added
Provenance
Facts checked against the developer's own pages and store listings, 1 sources on file.

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Software that can replace CotEditor for an important use case, and what changes if you switch.

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  • Visual Studio Code

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  • Nova

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    Nova adds terminals, Git, debugging and managed language servers in a native Mac app, but it is paid after the trial and needs macOS 15.6 or later.

  • Zed

    A Rust editor from the people who built Atom, written for speed and for two people editing one file.

    Zed is an open-source cross-platform Rust editor with language servers and collaborative editing, going beyond CotEditor's plain text focus.

Similar software

Related functionality, not necessarily a direct replacement.

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