Open Source Text Editors
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Browse free open source Text Editors and projects below. Use the toggles on the left to filter open source Text Editors by OS, license, language, programming language, and project status.
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Notepad++ Plugin Manager (old repo)
Notepad++ Plugin Manager [deprecated - now on github]
This project is the old location for the plugin list for Notepad++ Plugin Manager. Please use https://github.com/bruderstein/npppluginmanager for any issues and current code -
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Notepad++
Free, open-source text editor
Notepad++ is a source code editor that is free to use and is available in various languages. The source code editor is also written in C++ and is based on the Scintilla editing component. Notepad++ offers a wide range of features, such as autosaving, line bookmarking, simultaneous editing, tabbed document interface, and many more features. Over 140 plugins are also available to use in the default program. Notepad++ takes advantage of higher execution speed and smaller program size by using Win32 API and STL. The ability to optimize efficiency without sacrificing user-friendliness results in an environment-friendly technology that reduces carbon dioxide emissions. Ultimately, the reduction in power consumption is much better for the environment while still being a viable option for businesses. If you like this project consider donating. https://notepad-plus-plus.org/donate/ -
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Notepad++ Plugins
A plugin to improve Notepad++
Notepad++ plugins is a collection of tools which plays a role of completion for Notepad++. This project contains Explorer, Function List, Hex Editor, Spell Checker and a console program NppExec. Other plugin developers are invited to share their projects -
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CudaText
Cross-platform text and code editor
Cross-platform code editor, with syntax highlight for 300+ languages. Has lite interface with tabs. Has JSON config files instead of the options dialog. Supports Python extensions. Documentation wiki: http://wiki.freepascal.org/CudaText -
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KDiff3
A graphical text difference analyzer
This repository is no longer maintained and is kept for archival purposes. See https://invent.kde.org/sdk/kdiff3 for the newest code and https://download.kde.org/stable/kdiff3/ for release bundles. All bugs should be filed at bugs.kde.org. KDiff3 is a graphical text difference analyzer for up to 3 input files, provides character-by-character analysis and a text merge tool with integrated editor. It can also compare and merge directories. Platform-independant. -
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OmegaT - multiplatform CAT tool
The free computer aided translation (CAT) tool for professionals
OmegaT is a free and open source multiplatform Computer Assisted Translation tool with fuzzy matching, translation memory, keyword search, glossaries, and translation leveraging into updated projects. -
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A simple notepad-like text editor with many features. It is designed to be a small and fast.
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SAKURA Editor
A free Japanese text editor for Windows
A free Japanese text editor for Windows -
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jEdit Plugin Central is the primary online repository of plugins for the jEdit text editor. In conjunction with this repository, the integrated Plugin Manager allows jEdit users to install, upgrade, and remove plugins without leaving the editor.
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jEdit
jEdit is a programmer's text editor written in Java.
jEdit is a programmer's text editor written in Java. It uses the Swing toolkit for the GUI and can be configured as a rather powerful IDE through the use of its plugin architecture. -
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XMLStarlet is a set of command line utilities (tools) to transform, query, validate, and edit XML documents and files using simple set of shell commands in similar way it is done for text files with UNIX grep, sed, awk, diff, patch, join, etc utilities.
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MarkText
A simple and elegant markdown editor
MarkText is an MIT licensed open source project, and the latest version will always be downloadable for free from the GitHub release page. MarkText is still in development, and its development is inseparable from all sponsors. Realtime preview (WYSIWYG) and a clean and simple interface to get a distraction-free writing experience. Support CommonMark Spec, GitHub Flavored Markdown Spec and selective support Pandoc markdown. Markdown extensions such as math expressions (KaTeX), front matter and emojis. Support paragraphs and inline style shortcuts to improve your writing efficiency. Output HTML and PDF files. Various themes: Cadmium Light, Material Dark etc. Various editing modes: Source Code mode, Typewriter mode, Focus mode. Paste images directly from clipboard. -
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KompoZer
A wysiwyg HTML editor that uses the Mozilla Composer codebase
KompoZer is a wysiwyg HTML editor using the Mozilla Composer codebase. As Nvu's development has been stopped in 2005, KompoZer fixes many bugs and adds a few useful features. -
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Atom
A hackable text editor for the 21st Century
Atom is a text editor that's modern, approachable and full-featured. It's also easily customizable- you can customize it to do anything and be able to use it productively without ever touching a config file. Atom is free to download and runs on Linux, OS X and Windows with support for plug-ins written in Node.js and embedded Git Control. It is based on Electron (formerly known as Atom Shell),a framework for building cross-platform apps using Chromium and Node.js. -
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VSCodium
binary releases of VS Code without MS branding/telemetry/licensing
Microsoft’s vscode source code is open source (MIT-licensed), but the product available for download (Visual Studio Code) is licensed under this not-FLOSS license and contains telemetry/tracking. The VSCodium project exists so that you don’t have to download+build from source. This project includes special build scripts that clone Microsoft’s vscode repo, run the build commands, and upload the resulting binaries for you to GitHub releases. These binaries are licensed under the MIT license. Telemetry is disabled. If you want to build from source yourself, head over to Microsoft’s vscode repo and follow their instructions. VSCodium exists to make it easier to get the latest version of MIT-licensed VSCode. Please note that some Visual Studio Code extensions have licenses that restrict their use to the official Visual Studio Code builds and therefore do not work with VSCodium. -
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A plugin which uses Exuberant Ctags to parse either only the currently activated source file or multiple files of so-called sessions. The results are shown and can be browsed in a treeview inside of a dockable window.
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OOO Extras
Extra tools for OpenOffice under weak copyleft or other licenses
A space to store classic OOo dependencies that cannot be easily redistributed in Apache OpenOffice's Source tree. Initially this was meant for copyleft tarballs only but it is also pretty handy to mirror other file dependencies. -
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Neovim
Hyperextensible Vim-based text editor
Neovim is a hyperextensible text editor based on Vim. It seeks to maximize usability and extensibility, simplify maintenance and encourage contributions. -
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Utilities for general- and special-purpose documentation. Includes reStructuredText, the easy to read, easy to use, what-you-see-is-what-you-get plaintext markup language.
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Geany
A fast and lightweight IDE
Geany is a powerful, stable and lightweight programmer's text editor that provides tons of useful features without bogging down your workflow. It runs on Linux, Windows and macOS, is translated into over 40 languages, and has built-in support for more than 50 programming languages. -
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Hunspell is a spell checker and morphological analyzer library and program designed for languages with rich morphology and complex compounding or character encoding. Hunspell interfaces: Curses, Ispell compatible pipe interface, OpenOffice.org UNO module
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AutoCodepage
Notepad++ plugin to auto change the code page of certain file types
This is a plugin for Notepad++, the free source code editor, to automatically change the code page of certain file types when they are loaded, when a file is renamed or its language is changed or its tab is activated. You can configure file classes and assign related file extensions, the code page to switch to and optionally the language which should be checked for before changing the code page. -
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FastAPI
FastAPI framework, high performance, easy to learn, fast to code
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints. Great editor support. Completion everywhere. Less time debugging. Designed to be easy to use and learn. Less time reading docs. Minimize code duplication. Multiple features from each parameter declaration. Fewer bugs. Get production-ready code. With automatic interactive documentation. Based on (and fully compatible with) the open standards for APIs: OpenAPI (previously known as Swagger) and JSON Schema. If you are building a CLI app to be used in the terminal instead of a web API, check out Typer. Typer is FastAPI's little sibling. And it's intended to be the FastAPI of CLIs. In summary, you declare once the types of parameters, body, etc. as function parameters. You do that with standard modern Python types. You don't have to learn a new syntax, the methods or classes of a specific library, etc. -
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Scintilla is a free source code editing component which includes useful features such as syntax styling, error indicators, folding, code completion and call tips. The project includes SciTE (SCIntilla based Text Editor).
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Brackets
A modern, lightweight yet powerful text editor
Brackets is a free, modern open-source text editor made especially for Web Development. Written in HTML, CSS, and JavaScript with focused visual tools and preprocessor support, Brackets makes it easy for web designers and front-end developers to design in the browser. Its blend of visual tools ensures you get just the right amount of help when you want it without disrupting your creative process. It's the better, easier and more enjoyable way of writing code.