GNU sed

Build and debug modern web and cloud applications. Code is free and available on your favorite platform - Linux, Mac OSX, and Windows.

Sublime Text is available for OS X, Windows and Linux. One license is all you need to use Sublime Text on every computer you own, no matter what operating system it uses. Sublime Text uses a custom UI toolkit, optimized for speed and beauty, while taking advantage of native functionality on each platform.

Vim is an advanced text editor that seeks to provide the power of the de-facto Unix editor 'Vi', with a more complete feature set. Vim is a highly configurable text editor built to enable efficient text editing. It is an improved version of the vi editor distributed with most UNIX systems. Vim is distributed free as charityware.

Notepad++ is a free (as in "free speech" and also as in "free beer") source code editor and Notepad replacement that supports several languages. Running in the MS Windows environment, its use is governed by GPL License.

At GitHub, we're building the text editor we've always wanted. A tool you can customize to do anything, but also use productively on the first day without ever touching a config file. Atom is modern, approachable, and hackable to the core. We can't wait to see what you build with it.

GNU Emacs is an extensible, customizable text editor—and more. At its core is an interpreter for Emacs Lisp, a dialect of the Lisp programming language with extensions to support text editing.

CodeMirror is a JavaScript component that provides a code editor in the browser. When a mode is available for the language you are coding in, it will color your code, and optionally help with indentation.

Neovim is a project that seeks to aggressively refactor Vim in order to: simplify maintenance and encourage contributions, split the work between multiple developers, enable the implementation of new/modern user interfaces without any modifications to the core source, and improve extensibility with a new plugin architecture.

It works in the browser as well as on the server. It works with pretty much any markup, doesn’t depend on any framework, and has automatic language detection.

With focused visual tools and preprocessor support, it is a modern text editor that makes it easy to design in the browser.

It is the most advanced WYSWIYG HTML editor designed to simplify website content creation. The rich text editing platform that helped launch Atlassian, Medium, Evernote, and more.

An integrated development environment for R, with a console, syntax-highlighting editor that supports direct code execution. Publish and distribute data products across your organization. One button deployment of Shiny applications, R Markdown reports, Jupyter Notebooks, and more. Collections of R functions, data, and compiled code in a well-defined format. You can expand the types of analyses you do by adding packages.

It is a social development environment for front-end designers and developers.. It functions as an online code editor and open-source learning environment, where developers can create code snippets, creatively named "pens", and test them.

It gives you faster, easier ways to design, code and publish websites and web applications that look amazing on any size screen. Create, code and manage dynamic websites easily with a smart, simplified coding engine. Access code hints to quickly learn and edit HTML, CSS and other web standards. And use visual aids to reduce errors and speed up site development.

TextMate brings Apple's approach to operating systems into the world of text editors. By bridging UNIX underpinnings and GUI, TextMate cherry-picks the best of both worlds to the benefit of expert scripters and novice users alike.

It is a community-driven, freely-licensed binary distribution of Microsoft’s editor VSCode.

gedit is the GNOME text editor. While aiming at simplicity and ease of use, gedit is a powerful general purpose text editor.

The Monaco Editor is the code editor that powers VS Code. It is licensed under the MIT License and supports IE 9/10/11, Edge, Chrome, Firefox, Safari and Opera.

It is the new native code editor for Mac. It is packed with features, built for modern workflows, lightning-fast and stylish. It also has a robust extensions architecture and replaces Code for Mac.

It is an online community for testing and showcasing user-created and collaborational HTML, CSS and JavaScript code snippets, known as 'fiddles'. It allows for simulated AJAX calls.

It is used for keeping notes, maintaining TODO lists, planning projects, and authoring documents with a fast and effective plain-text system

It has been crafted to serve the needs of writers, Web authors and software developers, and provides an abundance of features for editing, searching, and manipulation of prose, source code, and textual data.

It is a powerful, fast, and secure text editor whose helpful features make every day life easier for any user type and programming language. Windows, Mac, Linux.

It is a fast, clean, and powerful text editor used to code for the web. It has a Pixel-perfect preview. It has a built-in way to open and manage your local and remote files.

Kakoune is a code editor heavily inspired by Vim, as such most of its commands are similar to vi’s ones. Kakoune can operate in two modes, normal and insertion. In insertion mode, keys are directly inserted into the current buffer. In normal mode, keys are used to manipulate the current selection and to enter insertion mode.

It is a slick, great-looking editor that lets you compose and test code in just about any language you can throw at it

Micro is a terminal-based text editor that aims to be easy to use and intuitive, while also taking advantage of the full capabilities of modern terminals. It comes as one single, batteries-included, static binary with no dependencies, and you can download and use it right now.

It is a post-modern text editor. A Kakoune / Neovim inspired editor, written in Rust. It offers built-in language server support.

CotEditor is a lightweight plain-text editor for OS X.

It is a free, open source WYSIWYG editor built for the modern web. With its modular architecture and expressive API, it is completely customizable to fit any need.

Project VimR is an attempt to refine the Vim experience. The goal is to build an editor that uses Vim inside with many of the convenience GUI features similar to those present in modern editors for Mac.

It is an elegant one-window text editor for macOS. It is intuitive to use on personal tasks like writing blog posts, letters or grocery lists. But it also has all functionality you need for professional webdesign and programming.

It is a lightning-fast and powerful code editor. It is written in pure Rust, with UI in Druid. It's using Xi-Editor's Rope Science for text editing and using Wgpu for rendering.

A fast, minimalist, and remarkably extensible text editor for Linux, Mac OS X, and Windows. Textadept runs on Windows, Mac OSX, Linux, and BSD. It also has a terminal version, which is ideal for work on remote machines.

slap is a Sublime-like terminal-based text editor that strives to make editing from the terminal easier.

It is a new interactive IDE that lets you modify running programs and embed anything from websites to games. It gives real time feedback on the changes you make to your code, and shows how data values flow through your entire program. As such, it doesn't just provide the answers, but instead helps you understand why the answers are what they are.

It is a smart free cross-platform IDE. It streamlines and simplifies the PHP development process. It implements autocomplete features for PHP, HTML, JavaScript and even CSS.

It is a full-featured text editor for Windows that's easy to use, but sufficiently powerful for even the most complex text editing tasks.

Clojure Text Editor, for editing clojure code and markdown. Written entirely in Clojure with inspiration from Emacs and Vim.

A community-driven port of Emacs to Rust.