# webhintio/hint

💡 A hinting engine for the web

Repository: https://github.com/webhintio/hint
Canonical: https://ross.abutalabs.com/products/hint
Homepage: https://webhint.io/
Language: TypeScript
License: Apache-2.0
License Family: permissive
Topics: a11y, performance, security, best-practices, interoperability, pwas, security-scanner, lint, pwa, hint, hints, webhint, hacktoberfest
Last push: 2026-07-21T13:56:58+00:00

## Health v2 (maintenance only)
Score: 65/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 93, release rhythm 8, longevity 100
- inputs: {"age_days": 3485, "days_push": 43, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3698, forks 821 (observed 2026-08-28T04:08:14.916418+00:00)

## What it is
webhint is a customizable linting engine for the web that checks sites and code for accessibility, performance, security, cross-browser compatibility, and PWA best practices. It ships as a CLI, a browser DevTools extension for Chrome/Edge/Firefox, and a VS Code extension, with configurable hints, connectors, parsers, and formatters.

## Use cases
- lint a website for accessibility and performance issues
- check my site for web best practices before deploying
- scan a URL for security header problems like missing HSTS or X-Content-Type-Options
- audit a progressive web app manifest and service worker setup
- get real-time linting feedback in VS Code while writing HTML, CSS, and JS
- run web best-practice checks in a CI/CD pipeline
- find broken links, unminified JavaScript, and unoptimized images on my site
- detect vulnerable third-party libraries used by my web page

## When to choose
- you want a single configurable tool covering accessibility, performance, security, and compatibility hints for websites
- you need linting integrated across the workflow: IDE, browser DevTools, and CI
- you want to enforce best practices on live URLs or local dev servers via jsdom or Puppeteer
- you need an extensible hinting engine and want to write custom hints, connectors, or formatters
- you prefer a community-driven OpenJS Foundation project with preset configurations for web, accessibility, and PWAs

## When to avoid
- you only need unit or end-to-end testing rather than static best-practice linting of web pages
- you need deep in-page JavaScript analysis or full Lighthouse-style performance scoring with metrics
- your project is not web-based (Node CLIs, native apps, backend services)
- you want a zero-configuration security scanner for infrastructure rather than web page hints
- you need to lint non-browser code like TypeScript type correctness, where a dedicated linter fits better

## Facets
- artifact type: cli-tool
- maturity: active
- function: linter, testing, security, developer-tools, cli, browser-extension
- domain: web-development, developer-tools, accessibility, security, performance, frontend
- platform: cli, browser, editor-plugin, cross-platform
- tags: webhint, linting, best-practices, progressive-web-apps, cross-browser-compatibility, axe, puppeteer, ci-cd, vscode-extension, devtools, openjs-foundation, monorepo, editor-plugin, nodejs

## Member repositories
- webhintio/hint (main) score 65

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:14.916418+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 2026-08-29T18:31:03.628124+00:00, confidence not recorded.
  - readme: https://github.com/webhintio/hint (fetched 2026-08-28T04:08:14.916418+00:00, sha 17a40f722c92)
  - homepage: https://webhint.io/ (fetched 2026-08-29T09:25:10.189298+00:00, sha f540f6add74e)
  - site_page: https://webhint.io/docs/user-guide (fetched 2026-08-29T09:25:10.198233+00:00, sha 46d4053e35f1)
  - site_page: https://webhint.io/docs/user-guide/extensions/extension-browser (fetched 2026-08-29T09:25:10.200755+00:00, sha f653b8e2a696)
  - site_page: https://webhint.io/docs/user-guide/extensions/vscode-webhint (fetched 2026-08-29T09:25:10.202491+00:00, sha caa671f6b716)
  - site_page: https://webhint.io/docs/contributor-guide (fetched 2026-08-29T09:25:10.204157+00:00, sha cf45e4b5fcd6)
  - site_page: https://webhint.io/docs/user-guide/hints (fetched 2026-08-29T09:25:10.205828+00:00, sha d9873208d336)
  - site_page: https://webhint.io/about (fetched 2026-08-29T09:25:10.207523+00:00, sha 6617541760fb)
  - site_page: https://webhint.io/about/project_charter (fetched 2026-08-29T09:25:10.208992+00:00, sha 85ad15629d02)
  - site_page: https://webhint.io/about/faq (fetched 2026-08-29T09:25:10.210545+00:00, sha 0467a4851ffe)
- Data as of 2026-08-30T08:39:29.467469+00:00.