A free and open source plain-text editor for your Mac

CotEditor for Mac

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CotEditor 4.5.5

  -  12.6 MB  -  Open Source
Free Download

Security Status

Sometimes latest versions of the software can cause issues when installed on older devices or devices running an older version of the operating system.

Software makers usually fix these issues but it can take them some time. What you can do in the meantime is to download and install an older version of CotEditor 4.5.5.


For those interested in downloading the most recent release of CotEditor for Mac or reading our review, simply click here.


All old versions distributed on our website are completely virus-free and available for download at no cost.


We would love to hear from you

If you have any questions or ideas that you want to share with us - head over to our Contact page and let us know. We value your feedback!

Download CotEditor 4.5.5

  • CotEditor 4.5.5 Screenshots

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    CotEditor 4.5.5 Screenshot 1
  • CotEditor 4.5.5 Screenshot 2
  • CotEditor 4.5.5 Screenshot 3
  • CotEditor 4.5.5 Screenshot 4
  • CotEditor 4.5.5 Screenshot 5

What's new in this version:

New Features:
- Add Mojo syntax style

Fixed:
- Workaround an issue that “Keep on Top” feature blocks all windows from coming back to the foreground in the Stage Manager mode
- Fix an issue that invalid style names could be registered
- Fix an issue in the Key Binding settings that the documents currently opened were wrongly listed in the Window menu
- Fix an issue that the context menu in the editor didn't contain the script menu when the root scripts folder has only folders
- Fix missing localization

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