A community powered COVID-19 coronavirus tracker for Japan.
For all information regarding the data powering this site, please visit the covid19japan-data repo.
Our data is sourced from a variety of sources, primarily Japanese news outlets like NHK, prefectural governments, and the Ministry of Health, Labour and Welfare.
To embed an abridged version of the app, add the following to your HTML:
<script src="https://covid19japan.com/embed.js"></script> <div id="covid19japan-embed"></div>
If you would like to contribute features, refactor code, etc., please create or comment on an issue on this repo, and one of the core contributors listed below.
Running Dev Locally
Set up the environment:
Build the code continuously & serve it:
npm run start-webpack
You will now be able to access the site at http://localhost:4000/
npm run build
npm run watch
npm run start
When testing your changes locally, be sure to verify both the
/embed pages are working properly.
All strings in the
src/ files should be localized like this:
- Add a key-value pair in
src/i18n/en.jsonfor your string/text
- For HTML: add the
data-i18n="your-new-key"attribute to the HTML element to be localized (replace "your-new-key" in the example)
i18next.t("your-new-key")function to retrieve the localized string (replace "your-new-key" in the example)
- Add any additional translations with the same key to other files in
Adding new languages
To add a new language
- Make a copy of an existing localization file (recommended:
src/i18n/en.json), name it to match the new language (e.g.
- Replace the translations in the file you just created.
- Add the new language to the array of
- Add the appropriate
date-fnslocale to the imports of
src/i18n/index.js, and append that locale to the LOCALES export.
License & Code Re-use
The code for this project is released under the MIT License. You are free to re-use it but we ask that you please include a link back to the COVID-19 Japan website or this GitHub repository. We'd also be happy to include your site in the list of forked projects below – just create an issue to request it.