CodeMirror is a JavaScript library that can be used to create a relatively pleasant editor interface for code-like content. It could be easily integrated in to your webpage. It supports JavaScript, XML/HTML, CSS, Python, PHP, diff, C, Java, sTeX, LaTeX, Haskell, Smalltalk, reStructuredText and PL/SQL. It also supports features like Autocompletion, Search/replace, Highlighting the current line.
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CodeMirror is a JavaScript library that can be used to create a relatively pleasant editor interface for code-like content. It could be easily integrated in to your webpage. It supports JavaScript, XML/HTML, CSS, Python, PHP, diff, C, Java, sTeX, LaTeX, Haskell, Smalltalk, reStructuredText and PL/SQL. It also supports features like Autocompletion, Search/replace, Highlighting the current line.

CodeMirror - In-browser code editing

Etch is a content editor built on Backbone.js and is designed to be easily plugged into your Backbone app. It utilizes ContentEditable to edit content in place.

Etch.JS - A Content Editor

Open Live Writer is an open source application enabling users to author, edit, and publish blog posts. It is based on a fork of the well-loved but not actively developed Windows Live Writer code.

OpenLiveWriter - Helps to write, preview, and post to your blog

pell is the he simplest and smallest WYSIWYG text editor for web, with no dependencies. It can be easily customizable with the sass file (pell.scss) or overwrite the CSS. 

pell - The simplest and smallest WYSIWYG text editor for web, with no dependencies

Medium.js keeps HTML code within contenteditable semantic, simple, and clean. Medium.js also supports placeholders, automatic HR (or BR, or P) creation, events, hotkeys, simple & complex element injection, and more!

Medium.js - A tiny JavaScript library for making contenteditable beautiful (Like Medium's editor)

VSCodium is a Free/Libre Open Source Software Binaries of VS Code. This is a repository of scripts to automatically build Microsoft's vscode repository into freely-licensed binaries without MS branding / telemetry / licensing with a community-driven default configuration.

VSCodium - VS Code without MS branding / telemetry / licensing

lite is a lightweight text editor written mostly in Lua — it aims to provide something practical, pretty, small and fast, implemented as simply as possible; easy to modify and extend, or to use without doing either. Additional functionality can be added through plugins which are available from the plugins repository; additional color themes can be found in the colors repository. The editor can be customized by making changes to the user module.

lite - A lightweight text editor written in Lua

Monaco editor wrapper for easy/one-line integration with any React application without needing to use webpack (or any other module bundler) configuration files / plugins. It can be used with apps generated by create-react-app, create-snowpack-app, vite, Next.js or any other app generators - you don't need to eject or rewire them. You can use it even from CDN without bundlers.

Monaco Editor for React - Use the monaco-editor in any React application without needing to use webpack (or rollup/parcel/etc) configuration files / plugins

NicEdit is a Lightweight, Cross Platform, Inline Content Editor to allow easy editing of web site content on the fly in the browser. NicEdit Javascript integrates into any site in seconds to make any element/div editable or convert standard textareas to rich text editing.

NiceEdit - Lightweight, Cross Platform, Inline Content Editor

SpaceVim is a community-driven vim distribution that supports vim and Neovim. SpaceVim manages collections of plugins in layers. Layers make it easy for you, the user, to enable a new language or feature by grouping all the related plugins together. 

SpaceVim - A community-driven vim distribution inspired by spacemacs

Squire is an HTML5 rich text editor, which provides powerful cross-browser normalisation, whilst being supremely lightweight and flexible. Squire was written as a component for writing documents (emails, essays, etc.), not doing wysiwyg websites.

Squire - HTML5 rich text editor

ProseMirror is a well-behaved rich semantic content editor based on contentEditable, with support for collaborative editing and custom document schemas. Rich content editors should, ideally, produce clean, semantically meaningful documents while still being easy for users to understand. ProseMirror tries to bridge the gap between editing explicit, unambiguous content like Markdown or XML, and classical WYSIWYG editors.
 
ProseMirror has built-in, ground-up, rock solid support for collaborative editing, where multiple people work on the same document in real time. It is modular architecture makes sure you only load the code you need, and can replace parts of the system as needed.

ProseMirror is a well-behaved rich semantic content editor based on contentEditable, with support for collaborative editing and custom document schemas. Rich content editors should, ideally, produce clean, semantically meaningful documents while still being easy for users to understand. ProseMirror tries to bridge the gap between editing explicit, unambiguous content like Markdown or XML, and classical WYSIWYG editors.



ProseMirror- A toolkit for building rich-text editors on the web

Onivim 2 is a reimagination of the Oni editor. Onivim 2 aims to bring the speed of Sublime, the language integration of VSCode, and the modal editing experience of Vim together, in a single package. Onivim 2 is built in reason using the revery framework.
 
Onivim 2 uses libvim to manage buffers and provide authentic modal editing, and features a fast, native front-end. In addition, Onivim 2 leverages the VSCode Extension Host process in its entirety - meaning, eventually, complete support for VSCode extensions and configuration.

Onivim 2 is a reimagination of the Oni editor. Onivim 2 aims to bring the speed of Sublime, the language integration of VSCode, and the modal editing experience of Vim together, in a single package. Onivim 2 is built in reason using the revery framework.

Onivim 2 - Lightweight, Modal Code Editor

Mark Text is a Next generation markdown editor. A simple and elegant open-source markdown editor that focused on speed and usability. Mark Text uses virtual DOM to render pages which has the added benefits of being highly efficient and being open source. That way anyone who loves markdown and writing can use Mark Text.


Mark Text - A simple and elegant open-source markdown editor that focused on speed and usability


 A pixel Art & Animation Creation Tool Built using HTML5 Canvas. It is a Progressive Web App (PWA) with offline compatibility. It is mobile-friendly and is very easy to use. You can choose Any Dimensions for your Canvas, 16 X 16 is the default dimension. Dimensions below 128 X 128 are preferable for smooth operation and GIF creation.

PixelCraft - A Pixel Art Editor

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