Single lead melody
A clean one-note-at-a-time lead line through the 1-credit Basic Pitch path.
- Basic Pitch
- Basic Pitch
- 17.84s MIDI
- 17.84s MIDI
- 1 track
- 1 track
- 18 notes
- 18 notes
Source audio
18s mono WAV
MIDI preview
Basic Pitch output
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MP3 to MIDI Converter
AI online tool · 2 free trial credits on signup · convert any MP3 to editable .mid
Drop in an MP3 hook, riff, backing track, song section, or MP3 audio exported from a video you own or are licensed to use. PureMIDI uses AI to detect pitch, timing, and velocity, exporting a standard MIDI file you can open in any DAW. Sign up to claim 2 free trial credits — no subscription. Treat the result as an editable MIDI draft.
Conversion mode
Upload audio
Choose a supported file, then convert it to MIDI.
Choose an audio file to start
Formats: MP3 / MPEG Audio. Max 12MB.
MIDI preview
Hear real conversion examples
These samples were generated through the same production conversion paths users get: Basic Pitch for single-part audio and MT3 for full-song mode.
1 credit
Full-song mixed draft
A short mixed arrangement through full-song mode, returning one multi-track MT3 MIDI draft.
- MT3
- MT3
- 31.77s MIDI
- 31.77s MIDI
- 8 tracks
- 8 tracks
- 113 notes
- 113 notes
Source audio
32s stereo WAV
MIDI preview
MT3 output
The source clips are PureMIDI-owned synthetic demos; the MIDI files are raw provider outputs, not hand-corrected.
Convert MP3 to MIDI in three steps
- 01
Upload your MP3
Drag in an MP3 or pick a file up to 12MB. New accounts get 2 free trial credits, no install required.
- 02
AI detects notes
The AI engine analyzes pitch, on/off times, and velocity to create editable MIDI notes.
- 03
Download MIDI
Receive a standard .mid file and drop it into Logic, Ableton, FL Studio, Cubase, Reaper, or GarageBand.
When MP3 to MIDI helps
Transcribing songs and covers
Turn an MP3 reference into editable MIDI so you can transpose, rearrange, or rewrite parts.
Hook and riff capture
Pull a hook or chorus from an MP3 into MIDI to use as the seed of a new arrangement.
Practice and teaching
Convert student recordings to MIDI and import into notation software for grading and playback.
Remix and sampling
Use the detected MIDI draft as a starting point, then swap sounds and arrangement to create a remix.
Accuracy notes for MP3 to MIDI
- MP3 is lossy, so accuracy is usually a touch lower than WAV. Aim for 192kbps or higher.
- Clean vocals, solo instruments, and monophonic lines deliver the best results.
- For dense full-band mixes, isolate one clear part first for top accuracy, or use full-song mode (6-15 credits by length) to generate a multi-track MIDI draft.
- Heavy reverb, noise, or extreme compression can mislead the model — light cleanup first helps a lot.
How MP3 bit rate actually affects accuracy
Numbers from our internal test on a piano performance, compared against the WAV ground truth.
| MP3 bit rate | High-freq loss | Chord accuracy | Monophonic accuracy |
|---|---|---|---|
| 320 kbps CBR | Minimal | 92% | 97% |
| 256 kbps CBR | Low | 89% | 96% |
| 192 kbps CBR | Moderate | 82% | 93% |
| 128 kbps CBR | Noticeable | 71% | 86% |
| 96 kbps CBR / VBR | Severe | 58% | 76% |
| 64 kbps | Extreme | <50% | <70% |
When MP3 to MIDI isn't worth it
If your only source is below 96 kbps MP3 (early phone recordings, phone-call captures, old radio rips), error rates climb so high that re-performing the part is faster. Better to upload a higher-quality source, or hand-fix the MIDI in your DAW.
Common MP3 to MIDI gotchas and fixes
The pitfalls users actually run into — and how to avoid them.
- Output is an octave off: usually a mono high-bass line written to C4 instead of C2. Drop the whole track 12 semitones in your DAW.
- Streaming MP3 has a few seconds of silence at the start, MIDI timeline drifts: trim leading/trailing silence in Audacity before upload, or shift events in your DAW.
- MP3 is a full mix and MIDI sounds muddy: isolate one clear part first for cleanest results, or switch to full-song mode (6-15 credits by length) for a multi-track MIDI draft.
- Choral or multi-part piano MP3: a single MIDI channel collapses voices. Split by pitch range in your DAW or prepare a clearer isolated part first.
- MP3 has heavy reverb or pitch-shift effects: export a dry version from your DAW first and upload that instead.
Related guides
Workflow articles to help you get more out of your MP3-to-MIDI output.
How MP3 to MIDI connects to video 2 MIDI
Many video 2 MIDI workflows end with an MP3 exported from a video. This page is the right path when the music source you actually have is an MP3 file.
| Search intent | File to upload | Recommendation |
|---|---|---|
| MP3 to MIDI | Local MP3 | Use 192kbps or higher when possible |
| MP3 song to MIDI | Full song MP3 | Use Pro Song for a multi-track MIDI draft |
| video 2 MIDI | MP3 exported from video | Confirm rights, then upload the MP3 audio track |
| YouTube to MIDI | Authorized MP3 from a legal source | PureMIDI does not download YouTube; it converts audio you upload |
| MP3 to sheet music | Clear melody MP3 | Convert to MIDI, then open in MuseScore, Dorico, or Sibelius |
- Trim silence before upload to prevent the MIDI timeline from drifting.
- Do not re-encode a low-bit-rate MP3 to WAV and expect better accuracy; lost detail cannot be recovered.
- For a full mix MP3, Pro Song matches user expectations better than Quick Melody.
- If you still have a video file instead of an MP3, start on the Video to MIDI page.
YouTube, video, audio, and MP3 to MIDI workflow
These searches describe the same practical job: turn music from a video or audio file into an editable .mid. PureMIDI converts the audio track, not the video pixels, and it does not download from YouTube.
Video to MIDI / video 2 MIDI
Upload a local MP4, MOV, WebM, or M4V file; PureMIDI extracts the audio track and converts it to MIDI.
YouTube to MIDI / YT to MIDI
Preview a YouTube link, confirm rights, then continue to upload authorized audio.
Audio to MIDI / video to MIDI
Upload audio exported from a video, recording, or DAW bounce and turn it into editable MIDI.
MP3 to MIDI / video 2 MIDI
Use the MP3 workflow when the music you have is an MP3 song, hook, riff, or video audio export.
What video 2 MIDI means
Video to MIDI and video 2 MIDI usually mean converting the video's audio track into MIDI. Export or obtain an audio file you own or are licensed to use, then upload it to PureMIDI.
Clean up MIDI after conversion
Once you have a .mid file, you can inspect tracks, quantize timing, tweak velocities, and export a cleaner MIDI before opening your DAW.
MP3 to MIDI FAQ
Is the MP3 to MIDI converter really free?+
Free trial — sign up for 2 free trial credits, valid 14 days. No subscription. Continue with one-time credit packs (no expiration); see /pricing for current packs.
How accurate is MP3 to MIDI?+
Best for solo instruments, clean vocals, and monophonic lines. For full-band mixes, prepare one clear part first, or use full-song mode (6-15 credits by length) for a multi-track MIDI draft.
Can I convert 320kbps MP3 files?+
Yes. Higher bit rates produce more accurate results — 192kbps and above are recommended, including VBR.
Are long MP3 files supported?+
Free users can upload up to 12MB (roughly 5–10 minutes). Paid plans raise the limit and add batch processing.
Do you store my MP3?+
We only keep files while we run the conversion, then clean them up. We never use your audio to train models.
How do I convert MP3 to sheet music (PDF or MusicXML)?+
Convert MP3 to MIDI here, then import the MIDI into MuseScore, Dorico, Finale, or Sibelius and export sheet music.
Is MP3 to MIDI the same as video to MIDI or video 2 MIDI?+
If the video's audio track is an MP3, yes — use this page. PureMIDI converts authorized audio, not video pixels, so export or obtain an MP3 you own or are licensed to use and upload it here.
How does it compare to GarageBand or Logic's built-in audio-to-MIDI?+
PureMIDI runs in the browser with no install, handles multi-instrument material more reliably, and works on Windows, macOS, Linux, and ChromeOS.
Can I batch upload multiple MP3 files?+
The free tier converts one file at a time. Pro and Studio plans add folder uploads, conversion history, and API access.
More MIDI conversion tools
Audio to MIDI
Convert audio files or audio exported from video into editable MIDI drafts.
WAV to MIDI
Lossless WAV recordings to MIDI with AI pitch detection.
YouTube to MIDI Converter
Preview YouTube/YT links, then upload authorized audio for MIDI conversion.
Video to MIDI
Upload MP4, MOV, WebM, or M4V video and convert its audio track to MIDI.
PDF to MIDI Converter
Free online PDF sheet music to MIDI converter.
MIDI Editor Online
Browser MIDI editor for piano-roll editing, playback, track cleanup, quantize, and export.