“Can I use” provides up-to-date browser support tables for support of front-end web technologies on desktop and mobile web browsers. The site was built and is maintained by Alexis Deveria, with occasional updates provided by the web development community. The design used as of 2014 was largely created by Lennart Schoors. Features a Browser comparison Table – Select browser versions to compare. The project’s dataset covers 530+ technologies and 19 browsers (6 desktop, 13 mobile). It also provides estimates of the percentage of all users whose browsers support a given technology.  [via Jeremy Singer-Vine & Simon Willison]