Feature detection Packages

Modernizr is a JavaScript library that detects HTML5 and CSS3 features in the user’s browser.

Plugin for injecting a polyfills loader to HTML pages

Generate loader for loading browser polyfills based on feature detection

Babel preset including only needed ES2015+ plugins

✨ Browser emoji support detection toolkit

Optimize code paths using has API feature detection.

Gulp plugin for moderznir, Wezom studio version

Modernizr, the JavaScript library that detects HTML5 and CSS3 features in the user’s browser, in a pre-built form, so that it can be directly included into the browser for client-side usage.

Modernizr HbbTV Feature Detection Plugin

A fast, lightweight and dependency-free feature-detection library

A library of detection tools for JavaScript and TypeScript. Detect browser support, media features, environment etc.

A small javascript library that identifies older browsers via feature detection and (politely) turns them away.

Live, in-browser detection of modern CSS support for selectors, features, and at-rules. Applies support-based classes, exposes a results object, and allows custom tests.

An easy way to add feature detection to your TailwindCSS project

React hooks for adapting to pointer type changes. The correct alternative to feature detection.

Complete feature detection for addEventListener, including its third options parameter and passive events.