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Marijn Haverbeke 72579dd091 Remove quadratic complexity of adding lots of marks to a single line 1 day ago
.github Add a funding.yml file 6 months ago
addon [simple-mode addon] Don't drop regexp unicode flags 4 weeks ago
bin Change Google Inc. to Google LLC 3 years ago
demo [abbott.vim theme] Add 2 weeks ago
doc Mark version 5.61.0 4 weeks ago
keymap [emacs bindings] Define named commands for the key bindings 4 weeks ago
lib Suppress focus outline for scrollbar elements 8 months ago
mode [javascript mode] Properly handle exclamation marks in class fields 6 days ago
src Remove quadratic complexity of adding lots of marks to a single line 1 day ago
test Remove quadratic complexity of adding lots of marks to a single line 1 day ago
theme [abbott.vim theme] Fix -moz-selection syntax error 1 week ago
.editorconfig add .editorconfig 4 years ago
.gitattributes ensure lf eol on checkout 4 years ago
.gitignore [runmode addon] Reuse existing support code for standalone/node versions of runmode 11 months ago
.npmignore Make sure bin/source-highlight is in the distribution 3 years ago
.travis.yml Use new 'cache: npm' travis feature 3 years ago
AUTHORS Mark version 5.61.0 4 weeks ago Mark version 5.61.0 4 weeks ago Make all links to https 3 years ago
LICENSE Added license name 4 years ago Remove link to gitter room 8 months ago
index.html Add primo sponsor link 2 weeks ago
package.json Mark version 5.61.0 4 weeks ago
rollup.config.js [runmode addon] Fix lint issues 11 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
. For questions and discussion, use the
discussion forum.

for contributing guidelines.

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


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


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.