Versatile text editor implemented in JavaScript for the browser. It is specialized for editing code, and comes with a number of language modes and addons that implement more advanced editing functionality.

ACE Code Editor is described as 'Embeddable JavaScript code editor offering syntax highlighting for 110+ languages, theme support, extensibility, multiple cursors, and seamless integration' and is a Code Editor in the development category. There are four alternatives to ACE Code Editor for Self-Hosted, JavaScript and Web-based. The best ACE Code Editor alternative is CodeMirror, which is both free and Open Source. Other great apps like ACE Code Editor are CodeJar, Expr Code Editor and Monaco Editor.
Versatile text editor implemented in JavaScript for the browser. It is specialized for editing code, and comes with a number of language modes and addons that implement more advanced editing functionality.


An embeddable code editor written in JavaScript which allows editing expressions with syntax highlighting and autocomplete based on your types declaration.

The Monaco Editor is the code editor that powers VS Code. A good page describing the code editor's features is here. It is licensed under the MIT License and supports Edge, Chrome, Firefox, Safari and Opera.
