PUBLIC MARKS from Riduidel with tag editor

SynchroEdit is a browser-based simultaneous multiuser editor, a form of same-time, different-place groupware. It allows multiple users to edit a single web-based document at the same time, and it continuously synchronizes all changes so that users always have the same version. SynchroEdit's main editor is fully WYSIWYG, dynamically displaying bolds, italics, underlines, strikethroughs, with various justifications, indents and listing styles as an author inputs them. SynchroEdit also supports a simple, text-only editor for more basic documents. To clarify the multiuser experience, the editor window clearly depicts every user's changes in a specific color and also marks where each user is currently editing with a colored flag listing the user's name.

A coder's text editor for Mac OS X (open-source). Features include: user-extensible syntax coloring, regular expression search and replace, run-in-shell, text transforms, a code snippets drawer, HTML pretty-printing, HTML preview, and excellent keyboard c

RDE is the development environment of script language Ruby.

Notepad++ is a free source code editor which supports several programming languages running under the M$ Windows environment.

Edit started as a project to reimplement Rob Pike's acme editor in Java, so I could use it on Unix and Windows. (I'd got used to it at university, using Plan 9.) Eventually, my editor diverged and today probably represents my personality quite closely; in

Tom Dobrowolski's multi-platform collaborative text editor.

Substantial Emacs tweaks for Mac OS X.

jEdit is a mature and well-designed programmer's text editor that has been in development for over 5 years.

Jext is a free (as in free speech, covered by the GPL licence) source code editor written in Java. You can download it, use it, modify it, redistribute it... your choice, your freedom.

Smultron is an open-source text editor written in Cocoa for Mac OS X Panther

collarorative text editor for mac

TextForge is a text editor for Mac OS X, written using the Cocoa API. TextForge was built from scratch to provide a reliable, powerful, fast, efficient, and Mac OS X native solution for editing text documents. Some highlights are:

TextWrangler 2 is the powerful general purpose text editor, and Unix and server administrator's tool.

This is GNU Emacs ported to OS X and GNUstep, based on the earlier Rhapsody, OpenStep, and NeXTstep versions.