Upload an audio file to see a real-time frequency spectrum visualizer with bass, mid and treble levels.
Click to upload an audio file
Seeing the frequency content of your audio helps with mixing, checking for overly boomy bass, or just creating a visual for a podcast or music clip. This tool uses the Web Audio API's analyser node to draw a real-time frequency spectrum and track bass, mid and treble levels as your audio plays.
Step 1 — Upload an audio file. It starts playing automatically.
Step 2 — Watch the spectrum bars and bass/mid/treble level meters update live.
Step 3 — Use the player controls to pause, seek or replay.
Expecting an exported video file. This tool visualizes audio live in the browser; it doesn't export a video. Screen-record the visualization if you need a video file.
Any format your browser can play, including MP3, WAV, OGG and M4A.
No, everything is processed locally using the Web Audio API — your file never leaves your browser.