Brizm
MP3 to MIDI Converter
Convert any audio file to MIDI — polyphonic note detection with pitch, timing, and velocity. Runs locally, nothing uploaded.
Drop audio file here or click to browse
MP3, WAV, FLAC, OGG, M4A · Up to 10 minutes
Private — processed on your device, never uploaded
First use downloads a small AI model (cached for future visits).
Preparing...
Processing locally
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How to Convert MP3 to MIDI
- 1 Drop an MP3, WAV, or FLAC file (up to 10 min)
- 2 AI detects polyphonic notes, pitch, and velocity
- 3 Preview the piano roll and download the .mid file
Frequently Asked Questions
How do I convert MP3 to MIDI for my DAW (Ableton, Logic, FL Studio)?
Drop the MP3 onto the upload area, wait for the AI model to extract notes, preview the piano roll, then download the .mid file and import it into Ableton, Logic, FL Studio, Cubase, or any DAW that accepts standard MIDI. No re-tagging needed — pitch, timing, and velocity are preserved.
Is audio-to-MIDI conversion free?
Yes. Brizm's converter is free with no signup, no watermark, and no track length cap beyond 10 minutes. Files never leave your device — the AI model runs entirely in your browser via WebAssembly.
Can ChatGPT or AI generate a MIDI file from audio?
Large language models cannot transcribe audio to MIDI accurately. Brizm uses a specialized AI model trained on millions of note transcriptions — far more accurate than general-purpose chatbots for polyphonic pitch detection.
What is the best MP3 to MIDI converter?
The best converter depends on your audio: piano-only audio works in any tool, full mixes require polyphonic models. Brizm runs polyphonic detection locally with no upload — matching Spotify Basic Pitch quality without sending files to a server.
Does it detect polyphonic content (chords)?
Yes. The model performs polyphonic pitch detection — it can extract multiple simultaneous notes across MIDI channels. Accuracy is highest on isolated instruments; full mixes benefit from stem separation first.
Is my audio uploaded to a server?
No. All processing runs directly on your device using your own GPU or CPU. Your files never leave your machine — not even temporarily.
How our audio-to-MIDI technology works
