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Komodo IDE

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Komodo IDE
Initial releaseMay 2000; 24 years ago (2000-05)
Stable release
12.0.1 Edit this on Wikidata[1] / 10 February 2020 (10 February 2020)[2]
Written inC++, C, XUL, Perl, Python, JavaScript, CSS
Operating system
TypeSource code editor, IDE

Komodo IDE is an integrated development environment (IDE) for dynamic programming languages. It was introduced in May 2000. Many of Komodo's features are derived from an embedded Python interpreter.[4]

Komodo IDE uses the Mozilla and Scintilla code base, and supports many of the same features, languages and platforms, including the languages Python, Perl, PHP, Ruby, Tcl, SQL, Smarty, CSS, HTML and XML, and the operating systems Linux, OS X, and Windows. The editor component is implemented using the Netscape Plugin Application Programming Interface (NPAPI), with the Scintilla view embedded in the XML User Interface Language (XUL) interface in the same manner as a web browser plugin.

Komodo IDE has an open-source counterpart called Komodo Edit. Much of the code base is shared, although more advanced features are reserved for Komodo IDE such as debugging and unit testing.

Both Komodo Edit and IDE support user customizing via plug-ins and macros. Komodo plug-ins are based on Mozilla Add-ons and extensions can be searched for, downloaded, configured, installed and updated from within the application. Available extensions include a Document Object Model (DOM) inspector, pipe features, additional language support and user interface enhancements.

Komodo IDE has features such as integrated debugger support, DOM viewer, interactive shells, source code control integration, and the ability to select the engine used to run regular expressions, to ensure compatibility with the final deployment target. The commercial version also adds code browsing, a database explorer, collaboration, support for many popular source code control systems, and more.[5] Independent implementations of some of these features, such as the database editor, git support, and remote FTP file access, are available in the free version via Komodo Edit's plugin system.


  • 5.0: On 2008-11-03, ActiveState Software Inc. announced the release of Komodo IDE 5.0, which was built-on Mozilla 1.9 and Python 2.6.[6]
  • With the creation of the subscription-based ActiveState platform in 2018,[7] the Komodo IDE is now available only as part of an ActiveState Platform subscription.[8][9]


  1. ^ "Komodo 12 Documentation". docs.activestate.com. Archived from the original on 2020-06-03. Retrieved 2020-06-03.
  2. ^ "Download Komodo IDE". www.activestate.com. Archived from the original on 2020-04-21. Retrieved 2020-06-03.
  3. ^ "Komodo and Big Sur (DO NOT UPGRADE)". 17 November 2020. Archived from the original on 29 August 2021. Retrieved 29 August 2021.
  4. ^ Borck, James (February 26, 2009). "Test Center review: King of the dynamic IDEs". InfoWorld. Archived from the original on April 24, 2014. Retrieved March 10, 2019. ...an internal update to Python 2.6 -- from which Komodo draws most of its functionality...
  5. ^ "Komodo Edit". Archived from the original on 2019-03-18. Retrieved 2019-03-10.
  6. ^ "Komodo IDE 5.0 Release Enhances Feature Set for Development Teams". Archived from the original on 2022-01-02. Retrieved 2019-03-10.
  7. ^ "ActiveState Offers Way to Ship Software Faster & Keep Control" (Press release). GlobalNewsWire Press Releases. May 9, 2018. Archived from the original on April 10, 2019. Retrieved April 10, 2019.
  8. ^ "ActiveState® Komodo® IDE License Agreement". ActiveState. December 15, 2018. Archived from the original on April 10, 2019. Retrieved April 10, 2019.
  9. ^ "ActiveState Platform Pricing". ActiveState. 2018. Archived from the original on April 10, 2019. Retrieved April 10, 2019.
  10. ^ "ActiveState Komodo IDE Now Open Source". ActiveState. December 8, 2022. Archived from the original on December 10, 2022. Retrieved December 9, 2022.

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