The JavaScript and API powered

License: GPL-2.0

Language: JavaScript

Keywords: es2015, es6, es6-javascript, javascript, nodejs, react, redux, wordpress


Renovate enabled

Calypso is the new front-end – a beautiful redesign of the WordPress dashboard using a single-page web application, powered by the REST API. Calypso is built for reading, writing, and managing all of your WordPress sites in one place.

beautiful screenshot

It’s built with JavaScript – a very light node plus express server, React.js, Redux, wpcom.js, and many other wonderful libraries on the front-end.

You can read more about Calypso at

Getting Started

You can try out the user-side of Calypso on (a lot of the logged-in area is Calypso; if in doubt, view source), you can poke around the code here on GitHub, or you can install it and run it locally. The latter is the most fun.

  1. Make sure you have git, node, and npm installed.
  2. Clone this repository locally.
  3. Add calypso.localhost to your local hosts file.
  4. Execute npm start from the root directory of the repository.
  5. Open calypso.localhost:3000 in your browser.

Need more detailed installation instructions? We have them.


If Calypso sparks your interest, don’t hesitate to send a pull request, send a suggestion, file a bug, or just ask a question. We promise we’ll be nice. Just don’t forget to check out our CONTRIBUTING doc – it includes a few technical details that will make the process a lot smoother.

Calypso welcomes – and indeed has been built by – contributors from all walks of life, with different backgrounds, and with a wide range of experience. We're committed to doing our part to make both Calypso and the wider WordPress community welcoming to everyone.

You can contribute in many ways. You can help reporting, testing, and detailing bugs, and also test new features we release in our "beta" program for testing on Horizon.

To clarify these expectations, Calypso has adopted the code of conduct defined by the Contributor Covenant. It can be read in full here.


Need to report a security vulnerability? Go to or directly to our security bug bounty site

Browser Support

We support the latest two versions of all major browsers, except IE, where we currently only support 11 and Edge. (see Browse Happy for current latest versions).


If you have any problems running Calypso, please see most common issues.


Calypso is licensed under GNU General Public License v2 (or later).

Project Statistics

Sourcerank 17
Repository Size 155 MB
Stars 11,256
Forks 1,681
Watchers 518
Open issues 2,298
Dependencies 3,347
Contributors 385
Tags 64
Last updated
Last pushed

Top Contributors See all

Andrew Duthie Marin Atanasov Bernhard Reiter Ben Lowery Ben Dwyer Chris Rosser Matias Ventura Tugdual de Kerviler Jon Surrell Eric Binnion Jarda Snajdr Stéphane Thomas Javi A. Damián Suárez Grzegorz (Greg) Ziółkowski Kerry Liu renovate[bot] Drew Blaisdell Jan Cavan Boulas Timmy Crawford

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