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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.

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.

Cloud9 provides a development environment in the cloud. Cloud9 enables developers to get started with coding immediately with pre-setup environments called workspaces, collaborate with their peers with collaborative coding features, and build web apps with features like live preview and browser compatibility testing. It supports more than 40 languages, with class A support for PHP, Ruby, Python, JavaScript/Node.js, and Go.

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.

sed (stream editor) is a non-interactive command-line text editor.

Built on the open Eclipse Che project, Red Hat CodeReady Workspaces provides developer workspaces, which include all the tools and the dependencies that are needed to code, build, test, run, and debug applications.

It is a lightweight version of VS code that runs entirely in the browser and does not require any installation. It lets developers view and edit local files, take notes in markdown, and build client-side HTML, JavaScript, and CSS applications in conjunction with browser tools for debugging.

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.

A development platform that enables you to not only edit your files from underlying services like FTP, GitHub, Dropbox and the like, but on top of that gives you the ability to collaborate, embed and share through Codeanywhere on any device.

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

CodeSandbox allows developers to simply go to a URL in their browser to start building. This not only makes it easier to get started, it also makes it easier to share. You can just share your created work by sharing the URL, others can then (without downloading) further develop on these sandboxes.

Gitpod is an open source developer platform automating the provisioning of ready-to-code dev environments. Designed for applications running in the cloud, Gitpod frees engineering teams from the friction of manually setting-up loc

StackBlitz is the browser-based IDE that eliminates time-consuming local configuration and lets you spend 
more time coding. Develop with Next.js, React, Angular, Vite, and more in a Node.js development environment entirely in your browser

Koding is a feature rich cloud-based development environment complete with free VMs, an attractive IDE & sudo level terminal access!

Get setup lightning fast in the cloud & code from anywhere, on any machine.

Theia provides the end-user with a full-fledged multi-language IDE (not just a smart editor) and supports equally the paradigm of Cloud IDE and Desktop IDE.

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

Eclipse Che makes Kubernetes development accessible for developer teams, providing one-click developer workspaces and eliminating local environment configuration for your entire team.

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 a free, open-source online editor to help developers learn about Dart and Flutter. It compiles, analyzes, and displays the results of its users' Dart code, and can be embedded in other websites as an iframe.

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.

Coder moves developer workspaces to your cloud and centralizes their creation and management. With Coder, developers can get up and running on new projects right away and stay in flow using their preferred IDE and tools.

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.

FriendCode was created in 2013 with the vision of creating powerful development tools, tackling issues like collaboration, cloud development and many others. We are building Codebox, an open source Cloud IDE, than can run not only on the cloud, but on your desktop or your server as well. Codebox.io lets you host and manage Codebox instances online as a service using a dashboard or an API.

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.

Every project gets its own Box: an instantly available server-side development environment with full terminal access. With features such as forking, collaboration, importing from Git repos and more, Codio strives to remove as many barriers as possible to create a platform developers will enjoy using as their IDE of choice.

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.

The IBM Swift Sandbox is an interactive website that lets you write Swift code and execute it in a server environment – on top of Linux! Each sandbox runs on IBM Cloud in a Docker container. Both the latest versions of Swift and its standard library are available for you to use.

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.

It is an open source, web-based, cloud IDE and code editor with minimal footprint and requirements

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.

PaizaCloud IDE is a flexible browser-based web development environment. You can choose between Floating window mode like desktop OS, or Tab window mode. You can run File manager, Editor, Terminal to develop web applications.