README.md

Browserslist Website

This website uses Browserslist and Can I Use to display the compatible browsers for a browsers query.

browsersl.ist

HTTP API

You can use the site API in your own applications.

https://browsersl.ist/api/browsers?q=defaults&region=alt-as

• q — query or config. If config is provided it should be in .browserslist file format, not package.json-like. Examples are available on the website or in the browserslist repository. defaults by default.
• region — region code (optional). List of all region codes can be found at caniuse-lite/data/regions.

Response example

// https://browsersl.ist/api/browsers?q=>defaults+and+supports+es6-module&region=alt-as

{
  "config": ">0.3%",
  "lint": [
    {
      "id": "countryWasIgnored",
      "message": "Less than 80% coverage in `China`, `Nigeria`, `Tanzania`, `Ghana`, and `Uganda` regions"
    }
  ],
  "region": "alt-as",
  "coverage": 88.44,
  "versions": {
    "browserslist": "4.21.3",
    "caniuse": "1.0.30001381"
  },
  "updated": 1675156330646,
  "browsers": [
    {
      "id": "chrome",
      "name": "Chrome",
      "coverage": 17.06,
      "versions": {
        "102": 0.72,
        "103": 16.32
      }
    }
    ...
  ]
}

Errors

If you send a request with an error, you will receive error message with the status 400.

// https://browsersl.ist/api/browsers?q=>0%&region=XX

{
  "message": "Unknown region name `XX`."
}

Development

We recommend installing Prettier and EditorConfig plugins to your text editor.

To run a local copy for development:

1. Install Node.js 22 and pnpm 9.

2. Install dependencies:

   pnpm install

3. Run local server with client-side watcher.

   pnpm start

To run local server in production mode:

pnpm ssdeploy run