Local monophonic audio draft
Audio to MIDI without a cloud hop
WAV, MP3, and similar audio decode locally. One clear melody from the first 30 seconds becomes a rough piano-roll sketch you can edit immediately.
The recording never leaves this device. This rough draft follows one dominant melody from the first 30 seconds. Chords, drums, vocals inside a full mix, and polyphonic arrangements are not supported.
Choose a clear monophonic recording. The first 30 seconds become a rough melody draft in the piano roll.
Choose audio that pitch tracking can follow
A clean voice, bass, whistle, or single-note instrument is the best source for an audio to MIDI draft. Reduce accompaniment, room echo, delay, distortion, and background noise before conversion so one pitch remains dominant.
The detector analyzes the first 30 seconds, and no file format can separate instruments by itself. Trim the useful phrase and isolate the melody before opening it whenever possible.
Which page fits your file
This is the general entry point: use it for M4A, AAC, OGG, or any other format your browser can decode. Files that are plainly MP3 or WAV have their own pages with notes on those formats, and a hummed or sung line has a page of its own for voice-specific problems such as octave slips and vibrato.
All of them run the same local detector and hand the draft to the same piano roll, so the choice is about advice, not about a different result. If the draft needs more than a cleanup pass, the fix is a cleaner source recording rather than another converter.
Understand what conversion can recover
This audio to MIDI converter estimates note pitch and timing; it does not copy the original sound. The output cannot retain a voice, guitar tone, effects chain, stereo placement, lyrics, or recording texture because standard MIDI stores performance events rather than audio.
Only one dominant note is followed at a time. Voice to MIDI and simple instrumental phrases can produce an editable starting point, but chords, drums, full mixes, and polyphonic arrangements are outside the current detector. A full song to MIDI request needs stem separation and a different transcription workflow.
Turn detected notes into a usable MIDI file
After detection, the draft opens in the same piano roll as an uploaded MIDI file. Listen for octave jumps and short false notes, drag pitches into place, resize note endings, and loop a small section while comparing it with the source.
Use quantize when the phrase should meet a grid, velocity editing when note attacks are inconsistent, and transpose when the destination instrument needs another key. Export only after those corrections; the editable cleanup path is more useful than an opaque conversion score.
Keep the source audio on your device
Decoding and analysis run locally in the browser. EditMIDI does not receive the recording, and no account is required for this conversion. A browser decode failure is shown as an error instead of silently uploading the file to another service.
Use audio you own or have permission to transform. Browser-local processing changes where computation happens, not the copyright or licensing rules that apply to the recording.
Keep the same file
All EditMIDI tools
Every page runs on the same browser MIDI engine, so you can move between them without uploading or re-importing your file.
- MIDI editor online — edit notes, tracks, and velocity in the browser
- MIDI player online — preview tracks, scrub, and loop without uploading
- Transpose MIDI online — change key without losing tempo or controllers
- Change MIDI BPM online — replace a tempo map with one steady value
- Quantize MIDI online — snap note starts and ends to a musical grid
- MIDI velocity editor — set note dynamics from 1 to 127
- MP3 to MIDI converter — turn a melody into an editable piano roll
- Suno MIDI cleanup — quantize and fix messy AI exports
- MIDI to MP3 — render a MIDI file to WAV or MP3 in this browser
- Piano roll viewer — see every note, pitch, and length in a .mid file
- WAV to MIDI converter — draft notes from an uncompressed recording
- Vocal to MIDI — turn a hummed or sung line into editable notes
Broader transcription waitlist
The local result is a rough monophonic melody sketch, not a complete-song transcription. Join AI Credits if you want to hear when a broader workflow is good enough to charge for.