Modernizr - a JavaScript library allowing you to use CSS3 & HTML5 while maintaining control over unsupported browsers

• Read this page before filing a new issue. Also details on false positives and our policy on browser bugs.

• How to write tests in the new V3 test environment

• links to shims and polyfills that add functionity of new features to older browser. they work well in combo with modernizr's detects.

• things that maybe cannot be feature detected.

• modernizr-server (php)
• gwtmodernizr
• rack modernizr (ruby)
• django modernizr
• modernizr-rails (rails 3.1+)
• detector (php)
• Modernizr for Grails / (github sources) (Grails 1.3++)
• Modernizr for Rails Asset Pipeline
• modernizr-server for Express

• ringmark
• netzgesta supports
• html5test
• has.js covers common browser bugs and base features
• Raynos/feature covers Host object detection
• diveintohtml5 peeks pokes and pointers & detect everything (deprecated)

• Categorizr modern device detection script that categorizes devices into 4 categories; desktop, tv, tablet, or mobile. This project is no longer being maintained or actively developed.
• Detector by dmolsen

• caniuse uses Modernizr for testing, but its a human-curated list of features and their availability in past and future browsers. (Plus % share of browsers with each feature)
• html5please recommends how to implement a number of newer browser features.
• browserfeatures is a JSON document cross-referencing features and the various browser bug tracker tickets that own them

• Microsoft.com, Twitter.com, Github.com, NFL, posterous, finishline, american eagle, ... http://trends.builtwith.com/topsites/Modernizr

• Polymaps
• HTML5Widgets
• Plone