Free Komodo Edit Alternatives

GNU Emacs is an extensible and customizable, free and open source text editor. It was created by GNU Project founder Richard Stallman and has been dubbed "the most powerful text editor available today". At the core of GNU Emacs is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing. Which allows users to extend and customize GNU Emacs to their heart's content.

Eclipse IDE is a leading open platform for professional developers. With the Eclipse IDE you can write applications in your favorite programming language with confidence.

TextWrangler is an all-purpose text and code editor for macOS. TextWrangler is now BBEdit.

A free and open source IDE based on Electron and Atom, developed by Microsoft. Visual Studio Code or VS Code is an extensible IDE or coding editor that is loved by many developers around the globe. The editor combines a streamlined UI with advanced code assistance, code nagivation and intellisense.

VSCodium is a community-driven, freely-licensed binary distribution of Microsoft’s editor VSCode. VSCodium is built on the same source code as VSCode, but with telemetry and tracking removed before it is packaged as an application. VSCodium is released under the MIT license and is a great way to use VSCode without being tracked by Microsoft.

A free and open-source lightweight GUI text editor using Scintilla and GTK with basic IDE features. Geany is designed and developed with performance in mind, and provides limited dependency on separate packages or external libraries on Linux. Geany is available for a wide variety of operating systems including BSD, Linux, macOS, Solaris and Windows.

A free and open-source IDE for macOS, Linux, and Windows developed by GitHub Inc. The application is build on the Electron framework and provides a wide eco-system of add-ons that can be used to extend the IDE further. Atom is loved by developers across the globe.

A loved text editor and IDE for web developers and designers that provides unmatched responsiveness. Sublime Text provides a wide selection of editing command including indenting or un-indenting, paragraph reformatting, line joining , multiple selections, regular expression search and replace, incremental find as you type, and preserve case on replace. The IDE can also be extended with community built packages to further improve language detection, auto-complete and intellisense features.

Apache NetBeans is free and open-source IDE that combines development environment, a tooling platform and application framework into one package. With Apache NetBeans developer can build applications with Java, JavaScript, PHP, HTML5, CSS, and other languages. Apache NetBeans also features code highlighting, both syntactically and semantically, while also letting developers refactor code with a wide range of powerful and handy tools. The software is openly developed by the Apache Foundation and is available for macOS, Linux, Windows and BSD.

gedit is a free and open source IDE native to the GNOME desktop environment. With gedit you can work with a wide range of programming languages including C, C++, Java, JavaScript, HTML, XML, Python and Perl. The IDE automatically detect programming language and provide code color highlighting accordingly. It also include features like search and replace, spell checking, printing and support for most filte types.

jEdit is a mature programmer's text editor written in Java. The editor is released as free and open source software under the GNU General Public License version 2.0. With jEdit you can enjoy features like auto indentation and syntax highlighting for more than 200 languages. jEdit also provides a Plugin Manager that allows jEdit users to install, upgrade, and remove plugins without leaving the editor.

The Bluefish Editor is a free and powerful editor that is used by programmers and web developers. Bluefish supports a handfull of programming and markup languages including HTML, XHTML, CSS, XML, PHP, C, C++, JavaScript, Java, Go, Vala, Ada, D, SQL, Perl, ColdFusion, JSP, Python and Ruby. The software is developed openly and is released for free under the GNU GPL license.