MP3 to MIDI
MP3 to MIDI Converter — Free, No Signup
Screenshots
This tool uses a machine learning model — based on Spotify's open-source Basic Pitch — to transcribe audio into MIDI notes entirely inside your web browser.
Just upload an MP3, WAV, FLAC, or M4A file, wait a few seconds while the AI listens, and download a MIDI file you can open in any notation or production software like Logic Pro, Ableton Live, or FL Studio.
No sign-ups, no payments, no file uploads to external servers. Your audio stays on your machine. The AI model downloads once (about 900KB) and works offline after the first load.
Key Features
Built-in MIDI editor
Online piano roll editor lets you fix wrong notes, quantize, and adjust velocity before exporting
Works offline
AI model caches in your browser after first load
Side-by-side playback
Listen to original audio and MIDI version together for easy comparison
Use Cases
- Music transcription
- Music production
- Learning and practice
- Remixing and arranging
FAQ
Is my audio uploaded to a server?
No. Everything runs locally in your browser. Your audio is decoded, analyzed, and discarded in your browser's memory — it never leaves your machine.
Why do I need to select an instrument?
Selecting the instrument helps the AI focus on the right frequency range and improves transcription accuracy.