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, Elixir, 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 5.0.2

Bug fixes and maintenance:
• Fixed performance issue that caused SubEthaEdit to get slower and more CPU intensive with every additional window
• Fixed an issue with the line number bar overlapping the text on scroll when line wrapping was turned off
• Fixed an issue where the initial character width value when turning on line wrap was wrong
• Fixed small memory leaks
• Fixed an issue with the command line install helper and case sensitive file systems
• Removed superfluous logging

Improved modes:
• Markdown – improved the symbol navigation

Ratings and Reviews

4.8 out of 5
20 Ratings

20 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.

Kody B ,

Great product, but there’s a bug in this version

I’ve been using this editor for many years and am happy to see it back in active development.

There’s a small bug when using regular expression search with windows line endings. It doesn’t count the \r character as part of the line ending. So if you want to find all the lines ending in ‘a’ for instance, you would need to search for ‘a\r$’ as opposed to ‘a$’ if the file uses windows line endings.

EndNull ,

Doesn't work

Crashes within moments of trying to open. I'll change my review If there is an update that fixes the problems I'm having with it. I'll also consider changing the review if I can just figure out what is making it crash.


Dominik Wagner
21 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.