Created by two Finnish designers, Until AM is a web-based DJing app that draws from the music in your hard drive (e.g. iTunes) and music from SoundCloud (an enormous social sound platform, where anyone can post their music for free). To get started, drag and drop songs onto the left and right "turn tables." From there, use the volume fader, pitch fader, cross fader, and play/pause buttons to bring the two songs together. To "scratch," click and drag on the vinyl. When it comes to a free, web-based DJ app, Until AM is hard to beat.