So WordPress finally created something that can be reused outside of the walled garden in other competing projects. Yay! https://medium.com/@velmu/dear-drupal-and-wordpress-please-c...
I just hope Wix then pushes their changes to the editor. And then we can in the future use the UI components of the WP Apocalypse project: https://github.com/Automattic/wp-calypso/tree/master/client/...
In WordPress creator slams Wix: ‘Your app editor is built with stolen code’Automattic
wp-calypso
TypeScript2015–2024
Automattic / wp-calypso
wp-calypso
The JavaScript and API powered WordPress.com
30Distinct people
39Mentions
1Explicit recommenders
12.7KGitHub stars
What to know before exploring
What it is
The JavaScript and API powered WordPress.com
GitHub
Where it is used
No documented product use was verified in the last source check.
What people are saying
I love that you are also working in the open! At Automattic we do a lot of Open Source development. You can even see my PR introducing Sentry to our frontend:…
artpi used a recommendation phrase. One indexed comment matches. This is a phrase match, not a verdict.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 8–Nov 15 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/15/2026, 2:59:58 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by year39 dated mentions
Observed mentions: 2015-11-23 18:29:06 UTC to 2024-12-11 17:41:17 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2015 | 2015-01-01 00:00:00 UTC | 2016-01-01 00:00:00 UTC | 13 | 3 | 10 |
| 2016 | 2016-01-01 00:00:00 UTC | 2017-01-01 00:00:00 UTC | 11 | 2 | 9 |
| 2017 | 2017-01-01 00:00:00 UTC | 2018-01-01 00:00:00 UTC | 8 | 0 | 8 |
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 2 | 0 | 2 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2023 | 2023-01-01 00:00:00 UTC | 2024-01-01 00:00:00 UTC | 1 | 1 | 0 |
| 2024 | 2024-01-01 00:00:00 UTC | 2025-01-01 00:00:00 UTC | 1 | 0 | 1 |
From the project README
An excerpt from the repository, fetched Nov 13, 2026.
Read the project’s introduction
Calypso
Calypso is the new WordPress.com front-end – a beautiful redesign of the WordPress dashboard using a single-page web application, powered by the WordPress.com REST API. Calypso is built for reading, writing, and managing all of your WordPress sites in one place.
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.
Getting Started
You can try out the user-side of Calypso on WordPress.com (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.
Make sure you have git, node, and yarn installed.
Clone this repository locally.
Add 127.0.0.1 calypso.localhost to your local hosts file.
Execute yarn and then yarn start from the root directory of the repository.
Open calypso.localhost:3000 in your browser.
Need more detailed installation instructions? We have them.
Contributing
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.
Security
Need to report a security vulnerability? Go to https://automattic.com/security/ or directly to our security bug bounty site https://hackerone.com/automattic.
Our security policy can be read in full here.
Browser Support
We support the latest two versions of all major browsers. (see Browse Happy for current latest versions).
Troubleshooting
If you have any problems running Calypso, please see the most common issues.
License
Calypso is licensed under GNU General Public License v2 (or later).
Read the full README on GitHubWhat Hacker News says
11 sourcesWordPress.com front end is written with React. It's one of the biggest React projects, and it is used in production. We are actively developing on GitHub and trying develop out in the open.
https://github.com/Automattic/wp-calypso
In Ask HN: What good open source projects written in React that I can learn from?The new Wordpress frontend code seems to be utilizing React:
https://developer.wordpress.com/calypso/
https://github.com/Automattic/wp-calypso
In Ask HN: What good open source projects written in React that I can learn from?I love that you are also working in the open!
At Automattic we do a lot of Open Source development. You can even see my PR introducing Sentry to our frontend:
https://github.com/Automattic/wp-calypso/pull/2107 (Unfortunately removed, we are running custom solution right now, but thats another story..)
How are you dealing with discussions across your team on Github? Sometimes, we have to link to some discussion that is not happening in the open because of this or that business reason and we have to provide a context for colleagues but not everyone else.
At other times we want to encourage external contributions but some decisions happen outside of GH and contributors don't feel included.
Have you come across similar challenges?
In Building an Open Source Service- https://github.com/DimitriMikadze/Mean-Blog
- https://github.com/typicode/json-server
- https://github.com/Automattic/rest-api-console2
- https://github.com/Automattic/wp-calypso
In Ask HN: What real world open source Node.js applications?If you choose to start a new project with React and Webpack, I recommend to use Facebook's official boilerplate[1] and read their really informative user guide. I also find educational to look at the architecture, libraries and configuration of open source non-trivial web applications (e.g. Wordpress Calypso[2]).
[1] https://github.com/facebookincubator/create-react-app
[2] https://github.com/Automattic/wp-calypso
In Formidable Playbook: A practical guide to building modern applicationsFor those who don't have the time to watch all the videos, here's are the github links to the most interesting projects from Day 2:
NavigationExperimental: new multi-tab-aware navigation component https://github.com/facebook/react-native/tree/master/Librari...
cf. previous work on in-app "paths"by TaskRabbit http://tech.taskrabbit.com/blog/2015/09/21/react-native-exam...
Nuclide is an IDE for building react-native apps http://nuclide.io/docs/quick-start/getting-started/ source https://github.com/facebook/nuclide
Realm is a mobile database: an alternative to SQLite & key-value stores. Previously iOS and Java, now works with react native too https://github.com/realm/realm-js
Exponent lets you write apps in js w/o need for iOS/Android toolchain https://exponentjs.com/
Static site generator using React.js https://github.com/gatsbyjs/gatsby
Re
Read the rest
act Native for Web: A framework for building Native Web Apps https://github.com/necolas/react-native-web
The source code of wp-calypso, an example of a large React.js project: https://github.com/Automattic/wp-calypso/tree/master/client
enzyme's shallow-DOM testing utilities for React https://github.com/airbnb/enzyme#shallow-rendering
react-native-mock: a fully mocked and test-friendly version of react native https://github.com/lelandrichardson/react-native-mock
graphene: GraphQL framework for Python https://github.com/graphql-python/graphene and their hosted version http://resolver.cloud/
“f” goes missing or rearranges itself in a word after Google Fonts update
3 points · Open discussionI wonder how much of that is simply npm duplicating libraries (at slighly different versions) due to its no-shared-dependencies approach?
https://github.com/Automattic/wp-calypso/blob/master/package... uses ~130 libs.
After npm install (incl. dev deps), node_modules/ weighs 170M file size (and whopping 550M(!) disk size).
Let's check duplication. Dirs:
(Assuming equal size & name indicate equal content)
$ sed 's@\S*node_modules/@@' DU | sort -k2,2 -k1,1 | wc -l
6259
~/wp-calypso (master) $ sed 's@\S*node_modules/@@' DU | sort -k2,2 -k1,1 | uniq | wc -l
3286
~/wp-calypso (master) $ sed 's@\S*node_modules/@@' DU | sort -k2,2 -k1,1 | uniq --skip-fields=1 | wc -l
2799
$ sed 's@\S*node_modules/@@' DU | sort -k2,2 -k1,1 | uniq --skip-fields=1 --count | numaverage
2.23615576991783
Bytes:
$ sed 's@\S*node_mo
Read the rest
dules/@@' DU | sort -k2,2 -k1,1 | tr -d , | numsum | numfmt --grouping
170,022,500
~/wp-calypso (master) $ sed 's@\S*node_modules/@@' DU | sort -k2,2 -k1,1 | uniq | tr -d , | numsum
117,107,993
~/wp-calypso (master) $ sed 's@\S*node_modules/@@' DU | sort -k2,2 -k1,1 | uniq --skip-fields=1 | tr -d , | numsum | numfmt --grouping
91,895,673
=> dirs appear in ~2.2 places on average; ~31% of total size is wasted on exact dups, ~14% more spent on different versions on same lib.
$ npm dedupe
...
$ $ du --summarize --apparent-size node_modules/
166,097,508 node_modules/
Underwhelming! Only 2%?! dedupe is constrained by npm lookup algorithm (can only lift equal versions to parent dir) but 2% is useless. Should have used sym/hard/reflinks.
Anyway, I now know npm's exact-duplication overhead is not huge (though could be linked);
inexact-duplication is small enough to be easily worth the ability to mix versions;
and that the new control panel is indeed bloated [however I assume it has more functionality than old?].
Eh, bbPress used to be on BackPress, which was a relatively unmaintained fork of the functional core of WordPress -- rather than having it run on unmaintained software or duplicating effort by pulling code across, it was changed to a plugin -- which is now much easier to set up and share users and content with your main site. It was a good change.
Also, while WordPress.com is WordPress some of the way down, some of our other stuff is anything but. We've been migrating to much more API-driven functionality, and the current WordPress.com dashboard (codenamed Calypso) is purely Javascript, based in React, and fully open source. You can download and run it yourself if you like -- https://github.com/Automattic/wp-calypso
And yes, as noted, Simperium/Simplenote, Cloudup, PollDaddy, Gravatar, others -- these aren't WordPress.
In Inside Automattic's Remote Hiring Process