Audio to MIDI Converter
Convert audio files (WAV, MP3) to MIDI sequences using machine learning. 100% client-side transcription.
Click to upload or drag and drop
WAV, MP3, OGG (Recommended: Piano recordings, max 30s for speed)
Initializing ML model...
Transcription Complete
MIDI file is ready for download.
How it works?
This tool uses the Onsets and Frames machine learning model by Google Magenta. It processes your audio locally using TensorFlow.js to detect note starts (onsets), duration (frames), and velocity. The transcription is performed entirely in your browser.
Privacy & Performance
Your audio files are never uploaded to any server. Because the ML model (approx. 20MB) is large, the first use may take a moment to initialize. For best results, use clear solo piano recordings.