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- # CodeMirror 5
- **NOTE:** [CodeMirror 6](https://codemirror.net/) exists, and is more mobile-friendly, more accessible, better designed, and much more actively maintained.
- [](https://github.com/codemirror/codemirror5/actions)
- 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](https://codemirror.net/5/doc/manual.html)) on the [project
- page](https://codemirror.net/5/). For questions and discussion, use the
- [discussion forum](https://discuss.codemirror.net/).
- See
- [CONTRIBUTING.md](https://github.com/codemirror/CodeMirror/blob/master/CONTRIBUTING.md)
- for contributing guidelines.
- The CodeMirror community aims to be welcoming to everybody. We use the
- [Contributor Covenant
- (1.1)](http://contributor-covenant.org/version/1/1/0/) as our code of
- conduct.
- ### Installation
- Either get the [zip file](https://codemirror.net/5/codemirror.zip) with
- the latest version, or make sure you have [Node](https://nodejs.org/)
- installed and run:
- npm install codemirror@5
- **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.
- ### Quickstart
- 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`.
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