# Fyrd/caniuse

Raw browser/feature support data from caniuse.com

Repository: https://github.com/Fyrd/caniuse
Canonical: https://ross.abutalabs.com/products/caniuse
Homepage: https://caniuse.com
Language: JSON
License: CC-BY-4.0
License Family: other
Last push: 2026-08-24T20:04:29+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 5337, "days_push": 9, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 5867, forks 1419 (observed 2026-08-28T04:09:31.799368+00:00)

## What it is
The raw JSON dataset behind caniuse.com, containing browser support tables for HTML5, CSS3, JavaScript APIs, and other web platform features. It is maintained as the data source for the site and is available for reuse in other projects under CC BY 4.0.

## Use cases
- check which browsers support a CSS feature
- build a tool that shows browser compatibility tables
- lint CSS against a target browser support baseline
- query JavaScript API support data programmatically
- embed browser support data in documentation or presentations
- determine what percentage of users can use a web feature

## When to choose
- you need raw, structured browser/feature support data for a tool or site
- you want to contribute support data updates to caniuse.com
- you are building compatibility linters, dashboards, or embeds

## When to avoid
- you need per-API method-level compatibility data (use mdn/browser-compat-data instead)
- you want a ready-made UI rather than raw data
- you need runtime browser feature detection rather than static support tables

## Facets
- artifact type: dataset
- maturity: active
- function: data-science, developer-tools, documentation
- domain: web-development, frontend, browser-extensions, developer-tools
- platform: cross-platform
- tags: browser-compatibility, caniuse, feature-support, json-data, web-standards, css, html5, javascript-api, web-server, nodejs

## Member repositories
- Fyrd/caniuse (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:09:31.799368+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T17:51:36.644325+00:00, confidence not recorded.
  - readme: https://github.com/Fyrd/caniuse (fetched 2026-08-28T04:09:31.799368+00:00, sha 01864c0953fa)
  - homepage: https://caniuse.com (fetched 2026-08-29T08:47:10.466697+00:00, sha f91abb2af5ae)
- Data as of 2026-08-30T08:39:29.467469+00:00.