MIDI Visualizer Online
See your music glow — falling notes, strike particles, and three themes, rendered live from any MIDI file you drop in.
Drop a .mid or .midi file here
or
Parsed locally in your browser — your file is never uploaded.
Note colors & glow style
Seconds of music visible at once
No loop set.
How it works
Your file never leaves this tab. MidiGlow parses the MIDI data locally, synthesizes the sound with the Web Audio API, and draws the falling notes on an HTML Canvas — every frame is timed by the same audio clock that plays the notes, so picture and sound stay in sync.
Pick a theme — Glow, Neon, or Aurora — to change the mood, zoom the visible time window to see more or less of the song at once, then record the canvas with MediaRecorder to export the performance as a video. All of it still happens on your own device.