Audio to MIDI Converter — Transcribe Melodies Online
This audio to MIDI converter turns your voice and instrument tracks into clean digital notes right in your browser. Upload an audio recording, detect pitches with high accuracy, and export standard score files. Your audio stays private on your own device.
What Is an Audio to MIDI Converter?
An audio to MIDI converter listens to recorded pitch frequencies and translates them into score data, capturing precise pitch, note start times, and duration. You can load the output into virtual instruments, rearrange it inside DAWs like FL Studio, or print it as traditional sheet music.
Our browser-based conversion engine processes everything locally on your machine. Because your music is never uploaded to external servers, transcription begins without file queues or lag. The tool delivers the clearest results on isolated vocal hooks, solo instruments, and distinct lead melodies.
Fast Browser Transcription Features
Accurate Pitch Detection
Pitch frequency, note duration, and velocity timings are recognized automatically.
Private Local Processing
Analysis runs entirely on your hardware so files never upload to the cloud.
No Account Required
Process tracks immediately without waiting in processing lines or signing up for an account.
Synchronized Preview
Play your synthesized notes alongside the source audio to verify accuracy.
Integrated Piano Roll
Refine note placements and delete ghost notes directly in the browser editor.
Universal File Export
Download standard .mid files ready for any sequencer, DAW, or software plugin.
How to Use an Audio to MIDI Converter Online
Three simple steps to generate a usable MIDI file.
1. Select Your Recording
Add an MP3 or WAV file with a distinct solo line, acoustic take, or vocal guide.
2. Detect Notes Automatically
The local algorithm reads audio frequencies and converts each event into score data.
3. Audition and Download
Check playback against your original track, make quick edits, and save the .mid file.
Who Needs an Audio to MIDI Converter?
Vocalists
Hum spontaneous toplines and turn them into workable notes for producers.
Beatmakers
Process sampled instrument phrases into notes to double them with new synth patches.
Composers
Transcribe solo audio sketches into notation ready for full orchestral scoring.
Music Students
Isolate difficult solos and melodic runs into visual charts for practice sessions.
Guitarists
Transform live guitar takes into flexible sequences to trigger virtual instruments.
Video Creators
Extract melodic hooks from an AI music video maker track to sync audio accents and visual cuts.
Frequently Asked Questions
Is this audio to MIDI converter free to use?
Yes. It runs in your browser and is free to use without an account.
Does my audio get uploaded to external servers?
No. The analysis happens on your device, and the file never leaves your computer or phone.
What audio recordings yield the best transcription accuracy?
A single clear melody, such as a voice, a flute or a lead synth. Full mixes with many instruments give less accurate results.
Can I edit the notes after processing?
MP3, WAV, M4A, OGG and FLAC files up to 50 MB.
Can it detect chords?
It can detect several notes at once, but single-line melodies are the most reliable.
What if no notes are detected?
Try a cleaner recording with less background noise, or isolate the part first with the vocal remover.
Can I edit the MIDI afterwards?
Yes. Open it in the MIDI Editor to move, delete or add notes before downloading.
Which programs open the file?
Any program that reads standard MIDI files, including all common DAWs and notation apps.
Process Your First File
Drop an audio file and get MIDI in seconds, right in your browser.