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Marijn Haverbeke 5c12351a3a Bump version number post-5.47.0 1 day ago
addon [hint addon] Offset the hint to position it correctly when hintOptions.container is given 3 weeks ago
bin Change Google Inc. to Google LLC 7 months ago
demo [yonce theme] Add 2 months ago
doc Bump version number post-5.47.0 1 day ago
keymap [emacs] Add "redo" keybinding in Emacs keymap 1 week ago
lib Revert "Update colour contrast of commented code" 6 months ago
mode [ruby mode] Fix matching of closing brackets during indentation 1 week ago
src Bump version number post-5.47.0 1 day ago
test [vim] fix blockwise yank 1 week ago
theme [midnight theme] Drop custom matchhighlight styles 2 weeks ago
.editorconfig add .editorconfig 1 year ago
.gitattributes ensure lf eol on checkout 1 year ago
.gitignore - Refactoring: Update to latest Rollup API 7 months ago
.npmignore Make sure bin/source-highlight is in the distribution 10 months ago
.travis.yml Use new 'cache: npm' travis feature 6 months ago
AUTHORS Mark version 5.47.0 1 day ago Mark version 5.47.0 1 day ago Make all links to https 10 months ago
LICENSE Added license name 2 years ago Drop funding-status smiley face 6 months ago
index.html Mark version 5.47.0 1 day ago
package.json Bump version number post-5.47.0 1 day ago
rollup.config.js Fix trailing whitespace in build output 7 months ago


Build Status NPM version

CodeMirror is a versatile text editor implemented in JavaScript for the browser. It is specialized for editing code, and comes with over 100 language modes and various addons that implement more advanced editing functionality. Every language comes with fully-featured code and syntax highlighting to help with reading and editing complex code.

A rich programming API and a CSS theming system are available for customizing CodeMirror to fit your application, and extending it with new functionality.

You can find more information (and the manual) on the project page. For questions and discussion, use the discussion forum.

See for contributing guidelines.

The CodeMirror community aims to be welcoming to everybody. We use the Contributor Covenant (1.1) as our code of conduct.


Either get the zip file with the latest version, or make sure you have Node installed and run:

npm install codemirror

NOTE: This is the source repository for the library, and not the distribution channel. Cloning it is not the recommended way to install the library, and will in fact not work unless you also run the build step.


To build the project, make sure you have Node.js installed (at least version 6) and then npm install. To run, just open index.html in your browser (you don’t need to run a webserver). Run the tests with npm test.