Free · Runs in your browser · No upload
Turn a melody in your audio into MIDI.
Choose a clear, single-note recording. Local MIDI analyzes the pitch locally and creates a MIDI file you can open in your DAW. Polyphonic mixes are not supported by this lightweight converter.
Your audio never leaves your device. No account or upload.
Pick a clean melody
Use a solo vocal, bass, lead, or another isolated monophonic part. Chords and full mixes can confuse pitch detection.
Convert in your browser
The audio is decoded and analyzed on this device. The tool estimates notes from pitch; it does not send your recording to a server.
Download and refine
Open the MIDI in your DAW, check note timing and octave, then edit anything the analysis missed.
Know before you convert
Designed for one clear line, not a finished transcription
This browser tool uses a lightweight monophonic pitch estimate. It works best with a steady, isolated melody. It is not a polyphonic transcription model and may miss quiet notes, vibrato, slides, percussion, or overlapping instruments.
For a comparison of other workflows and tools, see the audio to MIDI guide →
Working with chords?
Compare polyphonic tools by the edits they leave you
For overlapping notes, compare Melodyne and Prism on the same passage. Check missing notes, false notes, timing, and how long the repair takes—without trusting an unverified accuracy claim.
Read the Melodyne vs Prism polyphonic workflowNeed only the tempo? Use the BPM counter
Jukeblocks Alternative: Local MIDI vs Audio-to-MIDI Workflows
Choose the Right Audio to MIDI Workflow
Compare Free and Paid Audio to MIDI Workflows
Audio to MIDI Converter Accuracy and Workflow Comparison
Polyphonic Audio to MIDI: Separate, Convert, Repair
FAQ
Audio to MIDI converter questions
Does the audio upload to a server?
No. This converter decodes the selected file in your browser and does not upload it.
Can it convert a full song with chords and several instruments?
No. It is a simple monophonic estimator. Use an isolated melody for best results; a full mix needs a more capable transcription workflow and manual cleanup.
What does the MIDI file contain?
It contains estimated note events—pitch, timing, and duration—not the original sound or lyrics.