The powerful plain text and source editor. Now free and open source.

The app that started the collaborative editing revolution is back. Write articles, code, notes or meeting minutes with friends – wherever they are. Ideal for extreme programming sessions.

SubEthaEdit kickstarted collaborative editing with its easy and immediate way to connect and edit. Just add your co-workers to the document and start typing. No complicated setup, browser or Internet required.

2003 Apple Design Award Winner.

• Syntax Highlighting and Autocomplete for ActionScript, bash, C, C++, CSS, ERB, Erlang, Go, HTML, Java, Javascript, JSON, LaTeX, Lua, Markdown, Objective-C, Perl, PHP, Python, Ruby, TOML and XML
• Extensible architecture for custom modes for your favorite language or format
• Regular expression search and replace
• Extensive support for converting and reading text-encodings
• Bracket matching
• Code folding
• Autocomplete based on your content
• Word counter, invisible characters

• Collaboration over the Internet or the local network
• Read-only mode for network documents
• Public and private network documents

What’s New

Version 5.0

Now free and open source! The ideal tool for education, pair programming and tutoring and all your plain text editing needs.

• Support for Mojave Dark Appearance
• Overall facelift
• In bundle distribution of see command line tool and authentication script

Bug fixes and maintenance:
• Improved performance
• Improved reliability of see tool
• Fixed an issue where "Open Terminal Here" did not work reliably.

New Modes:
• Markdown

Ratings and Reviews

5.0 out of 5
10 Ratings
10 Ratings
Eric Coffman ,

The best text editor ever!

Ever since I've had a mac, I've used this app. Hands down, best text editor. Also, support is outstanding.

The Faj ,

Awesome new update!

Great to see SubEthaEdit back in full effect!

BattleCell ,

Excellent light editor

It is the perfect lightweight alternate to my main IDE. Block Edit functionality is excellent. Simultaneously view/edit different portions of the same file in split screen or separate windows (SHIFT CMD N). Effective search and replace. Change language syntax highlighting, file line endings and character encodings directly on the footer status bar. Collaborative editing is nice to have, though rarely used.


Dominik Wagner
20.9 MB
Developer Tools
OS X 10.11 or later, 64-bit processor
English, German
Age Rating
You must be at least 17 years old to download this app.
Unrestricted Web Access
© Lone Monkey Productions, Dominik Wagner


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.