CodeMirror is a versatile in-browser code editor implemented in JavaScript. Made specifically for editing code, it comes with more than a hundred language modes and numerous addons for more advanced code editing functionality. CodeMirror comes with several useful features, including autocompletion, code folding, configurable key bindings, Linter integration and many more. It supports the standard desktop versions of the following browsers: Firefox, Chrome, Safari, Opera and Internet Explorer...