One IDE, All Your Languages

Cross-Platform IDE for all your major languages,
including Python, PHP, Go, Perl, Tcl, Ruby, NodeJS, HTML, CSS, JavaScript and more ActionScript, Ada, Apache, APDL, ASN1, Assembler, AutoIt, Avenue, Baan, Bash, Batch, BlitzBasic, Bullant, C#, C++, CLW, CMake, Cobol, CoffeeScript, ConTeX, Csound, CSS, Diff, Django, Eiffel, EJS, epMojo, Erlang, Errors, EScript, Flagship, Forth, Fortran, Fortran 77, FreeBasic, Go, Gui4Cli, Haskell, HLSL, HTML, HTML5, IDL, Ini, Java, JavaScript, JSON, Kix, Komodo Snippet, LaravelBlade, LaTeX, Less, Lisp, Lot, Lout, Lua, Luddite, Makefile, Markdown, Mason, Matlab, Metapost, MMIXAL, MSSQL, MXML, MySQL, Nimrod, nnCrontab, Node.js, Nsis, Objective Caml, Octave, Pascal, Perl, PHP, PL-SQL, PostScript, POVRay, PowerBasic, PowerPro, PowerShell, PureBasic, Python, Python3, REBOL, Regex, reStructuredText, RHTML, Ruby, Sass, Scheme, Scriptol, SCSS, Smalltalk, Smarty, SML, Sorcus, Specman-E, SQL, TACL, TADS3, TAL, Tcl, TemplateToolkit, TeX, Text, TracWiki, Twig, VBScript, Verilog, VHDL, VisualBasic, XBL, XML, XSLT, XUL, YAML

Komodo 9.3 Released
See What's New

Easily toggle your important panels and widgets from the toolbar

Your panels hold any number of widgets which you can easily move and combine to your liking

Navigate through your open files, sort results and group them by language, path, custom patterns

Place breakpoints, collapse blocks of code, track change-sets, use bookmarks, all easily accessible from your editor margin

Quickly go to anything, whether it's a file, a project, a command, a bookmark .. you name it

Multi-caret is an integral part of many Komodo features


View All
  • Commando

    Quick access to all your files, tools, bookmarks, you name it. Commando paves the way!

  • Track Changes

    Easily reference what changes you have made, revert back or share the change via

  • Docker & Vagrant

    Run commands on your available instances, using auto-completions and hints.

  • Package Manager

    Integrates with Bower, NPM, Composer, Gem, PIP, CPAN, PyPM and PPM.

  • Shell Integration

    Easily run shell commands right from inside Komodo.

  • Code Intelligence

    Auto-complete and calltips. Fast code navigation with Code Browser. Code refactoring.

  • Version Control

    Subversion, Mercurial, Git, Perforce, Bazaar, CVS.

  • Collaboration

    Edit with multiple users simultaneously with Code Collaboration.

  • Cross-Platform

    Identical features for Mac, Linux and Windows.

  • Debugging

    Debug PHP, Python, Perl, Ruby, Tcl, Node.js. Debug locally and remotely. Configure breakpoints.

  • Packages and Customization

    Install and use community contributions from directly inside of Komodo.

  • Unit Testing

    Supports major frameworks such as PHPUnit, Perl TAP, Python unittest, and Ruby's rake test.


Packages allow you to enhance Komodo through addons, skins, color schemes, userscripts, key bindings, etc.

Recently Updated

  • Stylish

    User styles manager for Firefox and other Mozilla software

  • Russian language

    Komodo RU - Komodo 9 Russian localization

  • SciViews-K

    SciViews-K is an addons to integrate R and the R language in Komodo Edit/IDE

  • Deep Focus

    A dark grey skin for komodo edit/ide

  • Klint

    Adds a Syntax Checking tab into Komodo's bottom pane.

Most Popular

  • Stylish

    User styles manager for Firefox and other Mozilla software

  • WakaTime

    Komodo plugin to quantify your coding with automatic time tracking and metrics about your programming.

  • SQLite Manager

    Manage all your sqlite databases using this lightweight extension for firefox, thunderbird, seamonkey, komodo etc.

  • New Source Tree

    New Source Tree Komodo Addon

  • Komodin Git

    A komodo Git extension

Most Downloaded

  • Spacemodo

    Spacemodo is a Komodo skin that's based on the popular Spacegray theme

  • Abyss

    A dark skin for Komodo Edit/IDE

  • Avim

    Vietnamese input method extension for Firefox, Thunderbird, Komodo, etc. — bộ gõ tiếng Việt dành cho Firefox, Thunderbird, Komodo, …

  • Atomik

    Atomik is a pack of flat dark and light skins for Komodo 9

  • HTML Tools

    Komodo Addon to help with HTML Coding (1.1).


Komodo Webinar Questions
By Carey Hoffman, Nov 24, 2015
Komodo 9.3.1 Released
By Nathan Rijksen, Nov 19, 2015
Webinar: The One IDE for all Your Needs
By Sheila Louis, Nov 13, 2015
Komodo 9.3 Released - Yours Forever!
By Nathan Rijksen, Nov 3, 2015
Komodo IDE User Story: Defman
By Sheila Louis, Oct 14, 2015



@ActiveState Sweetttt, you beautiful sons-of-$&^%@, Komodo 8 now has all the features I've wanted in an IDE since I was 2 years old. #thanx
ANAIO via Twitter