Komodo IDE

One IDE for All Your Languages

Code faster with the IDE for today’s web languages – Python, PHP, Perl, Golang, Ruby and more.
For Windows, Mac and Linux.

Komodo IDE is now FREE as part of the ActiveState Platform.

View All Features of Komodo IDE | What’s New in Komodo 12.

Caution: Komodo 12 is currently unstable on MacOS Big Sur. For more information, refer to our Big Sur Komodo Community post here.

Code Editor, Graphical Debugging, Unit Testing in One

Code Intelligence

Powerful editor with syntax highlighting, autocomplete, code refactoring and more.

Debugging and Unit Testing

Visual debugger and more to debug, inspect and test your code

Version Control

Support for Git, Mercurial, Subversion, CVS, Perforce and Bazaar


Tons of add-ons for customizing and extending features

Dev Teams

Great tools for pair programming and collaboration. Learn more.

All Your Languages

Python, PHP, Perl, Go, Ruby, Node.js, JavaScript and more

Workflow Management

Define your own workflow with easy file and project navigation

Enterprise-Grade Support

Backed by ActiveState, trusted by developers and enterprises

What’s New with Komodo IDE

ActiveState Platform Integration

Komodo 12 is now integrated with the ActiveState Platform. Pick from ActiveState’s package inventory and the Platform builds your language distribution automatically, resolves dependencies, and packages your builds for easy deployment. The State Tool command line interface (CLI) comes integrated with Komodo to simplify and streamline your workflow.

Komodo ActiveState Platform Integration
codeintel KomodIDE

Revamped Code Intelligence

Code Intelligence is smarter and faster than ever before. Increase your productivity with smarter and more responsive autocomplete and symbol browsing, while enjoying overall faster performance.

Devdocs.io Integration

Resolve issues faster and focus on coding. Just highlight any word or code snippet and trigger the relevant language docs from inside Komodo, making the process of looking up documentation much simpler. It even works when you’re offline!

devdocs komodoIDE
hello world komodo IDE

Live Previewing

No need to switch back and forth between your browser and editor. Now you can edit your HTML and markdown and test it all without leaving your IDE. Your preview will automatically reload whenever you edit the file – saving not required.

But that’s not all. Komodo 12 includes Project/Folder Templates, Dependency Detector, Universal Package Manager, Clipboard Manager and added tools for Drupal, Laravel and WordPress. See What’s New in Komodo 12.

ActiveState Customers

As a passionate PHP developer, and having used competitor products extensively, I appreciate Komodo IDE every day. The improvement it and its add-ons have made to my productivity literally paid for the license cost in the first month.

Marc Gray, Lamped.co.uk

I appreciate your realistic licensing [for Komodo]—I paid for my own copy and I use it at home on my Linux desktop, on my laptop, and here at my day job.

Brian Wilson, Alsea Geospatial, Inc.

Komodo is a great product. My favourite feature is the regex generator/tester. It’s saved me heaps of time and aggravation when coming up with complicated regular expressions to get through weblogs and the like.

Ben Maddock, Web Administrator (UniSAnet), Flexible Learning Centre, University of South Australia

The increase in productivity I got from the interactive debugging environment in Komodo IDE probably saved me more than the purchase price within 48 hours. This is a quality product.

Graeme Robinson, Memex Inc.

Join the Komodo Community

Komodo wouldn’t be possible without you, our users. Get the most out of Komodo and download the latest packages, userscripts and other add-ons, or post a question on our forum. Visit Our Community Site.