Free MP3 to MIDI converter
Convert MP3 to MIDI without signing up.
Upload an MP3 up to five minutes and download the complete MIDI result. Preview both the source recording and generated notes before you save it.
- Free
- No sign-up
- 10 conversions / day
- No 30s cutoff
MP3 conversion
Drop in your MP3
Private links · automatic deletion within 24 hours
MP3 source profile
Compression matters less than musical separation.
- What MP3 preserves
- A good MP3 keeps the rhythm, melody, and note attacks needed for a useful transcription draft.
- What can get blurred
- Low bitrates and repeated exports can soften transients and add artifacts around sustained notes.
- Best use here
- Start with demos, voice notes, isolated parts, or references where the target line is easy to hear.
How it works
A direct route from MP3 to MIDI
Useful for extracting a melodic starting point from demos, reference recordings, voice notes, and other MP3 files you are allowed to process.
- 01Upload the complete audioChoose one supported file up to 50MB and five minutes.
- 02Wait for the transcriptionYour private upload is sent to Replicate Basic Pitch and the MIDI result is secured.
- 03Preview, edit, or downloadCompare the source with the synthesized MIDI, then download it or open the notes in the browser editor.
Made for useful first passes
Four formats in. One portable result out.
Ready to turn the recording into notes?
No account. No payment details. No short preview.
Straight answers
Before you upload
Is this converter really free?
Yes. You can run up to 10 conversions per UTC day without creating an account or entering payment details.
Do you limit the result to 30 seconds?
No. We process and return the full uploaded track within the product limit of five minutes and 50MB.
Which files are supported?
The MVP accepts MP3, WAV, FLAC, and OGG audio. Files are checked again on the server before conversion starts.
How long are my files kept?
The uploaded source is removed after the provider reaches a terminal state. The MIDI result and job record expire within 24 hours. Your browser keeps a local copy of the source only so you can replay it on the result page.
Will every note be correct?
Audio transcription depends on the recording. Clear, isolated instrumental audio is the best input. This service does not promise musical accuracy or studio-ready notation.
Does MP3 compression affect the MIDI result?
It can. A higher-bitrate MP3 with a clear lead part usually gives the model more useful detail than a heavily compressed copy.
Can I convert a finished song from MP3?
Yes, if you have permission to process it, but a dense mix may produce overlapping or incomplete notes. Use the result as a transcription draft.