CodeRunner 2

An advanced, highly flexible, and easy-to-use programming editor for your Mac. CodeRunner supports a large number of languages, and delivers big IDE features while remaining lightweight and clutter-free.

or download free trial
Version 2.3 – OS X 10.7+
Code Completion

Advanced Code Completion

Any programmer knows the importance of good code completion. That's why CodeRunner supports full-blown IDE-level code completion for most languages, including fuzzy-search, tab-selectable placeholders, and documentation snippets.


Run Code in Any Language

CodeRunner was built on the principle that you should be able to run your code instantly in any language. CodeRunner can run code in 23 languages out-of-the-box, and can be easily extended to support any other language. Adding a language is as easy as entering its terminal command.

CodeRunner can also run multi-file projects without any manual setup required.


Debugging with Breakpoints

It's easy to get frustrated when your code is not working right. New in CodeRunner 2.2, you can set breakpoints and step through code line by line.

Just click the text margin to set a breakpoint and start debugging. Explore the call stack, view and edit local variables, and leverage the full power of the debugger by issuing debugger commands.

Debugging your code has never been this convenient.


Code Templates

Quickly get down to coding without the need to write main functions, class definitions or other boilerplate code.

CodeRunner includes a number of fully-customizable templates for each language, to easily create classes, scripts, main methods, and the like. This also makes it easy to create multi-file projects.

More Features

TextMate theme support Automatic indentation support Interactive console
File navigator Intelligent bracket matching Custom compile flags
Symbol navigator Run with arguments & input sets Word completions
Multiple selections Live run statistics Software updates

Language Overview

Below is a summary of all the languages CodeRunner supports out-of-the-box.

Language Run Instantly Code Completion Debugger Support Syntax Highlighting
AppleScript Basic
C IDE-level gdb or lldb
C# Basic
C++ IDE-level gdb or lldb
Go Coming Soon gdb or lldb
Java IDE-level jdb
JavaScript IDE-level
jQuery IDE-level
LaTeX Coming Soon
Lua Library Functions
Node.js IDE-level Coming Soon
Objective-C IDE-level lldb
Objective-C++ IDE-level lldb
Perl Library Functions perldebug
PHP IDE-level phpdbg
Python IDE-level pdb
Python 3 IDE-level pdb
Ruby Basic
Rust Coming Soon gdb or lldb
Shell Script Basic bashdb
Swift IDE-level lldb

Syntax Highlighting Only
  • ActionScript
  • Ada
  • AngularJS*
  • ASP
  • Clojure
  • D
  • Erlang
  • Fortran - Modern
  • Fortran - Punchcard
  • Groovy
  • Haskell
  • Jade
  • Java Server Page
  • JavaDoc
  • JSON
  • Lasso
  • Less
  • Lisp
  • MultiMarkdown
  • Pascal
  • Postscript
  • Property List
  • RequireJS*
  • reStructuredText
  • Scala
  • SQL
  • Strings File
  • Tcl
  • Textile
  • XML
  • XSL
  • YAML
* Also supports IDE-level code completion.
You can also add your own syntax definitions, using TextMate 1 language grammars. All languages support word-completions.

Bought CodeRunner 2 on the App Store?

If you have bought CodeRunner 2 on the App Store, you can get a free license for the non-App Store version. To get a free license, simply download CodeRunner 2 and follow the instructions in the licensing window. Don't replace your App Store copy of CodeRunner until after you've generated your free license.