The powerful plain text and source editor thats native on macOS. 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 5.2

• macOS 11 style app icon
• Modernised search and replace user interface
• Modernised preference user interface

Bug fixes and maintenance:
• Fixed layout issues in web preview
• Fixed issue where the split view icon could disappear

Improved modes:
• Made bash mode also trigger for .zshrc/.zshenv

Ratings and Reviews

4.4 out of 5
50 Ratings

50 Ratings

ace apertura ,

Nice and clean editor, missing column-mode

This is a very nice and clean editor that I like quite a bit. It's also fast. What's a bother is that it doesn't have good column mode editing. TextMate for example has an ingeniously intuitive column mode where you can simply option-select or mouse click select and then edit multiple lines at once, even when moving to the end of the line to keep editing. SubEthaEdit is trying that but its block mode isn't working well at all. I sincerely hope that the developers can iron out those quirks and also give it better brace/parenthesis/bracket matching.

Rios0390 ,

Would like more extentions

Looks good an runs smooth

PLEASE create an editor for R...


Long Live SubEthaEdit

I've been using SEE for ages and was a little disappointed when I saw that it had become a free application, assuming the Developer would let it die. That MOST DEFINITELY does not seem to be the case. This is one of my favorite tools for development when a full-featured IDE is a bit too much and is my preferred native MacOS text to editor. Seeing it in the list of recently updated applications today and reading the patch notes brought a big smile to my face knowing that SEE is not dead. Thank you!

App Privacy

The developer, Dominik Wagner, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

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