Over 40,000 user contributed Music Visualizations - See what you hear with projectM - The most advanced open-source music visualizer. Play music with other apps, then visualize that music with projectM! projectM is an open-source project that reimplements the esteemed Winamp Milkdrop by Geiss in a more modern, cross-platform reusable library. Its purpose in life is to read in audio input and produce mesmerizing visuals, detecting tempo, and rendering advanced equations into a limitless array of user-contributed visualizations. Observe the sounds around you with your eyes. Captures windows system audio and renders visuals to the screen.