SoundToMIDI

Turn audio into editable MIDI in your browser

About SoundToMIDI

SoundToMIDI is a browser-based tool that transcribes audio files such as MP3, WAV, FLAC, M4A, OGG, AAC, and compatible MP4/WebM into standard MIDI files. The conversion process runs entirely on the user's device, ensuring privacy as no audio is uploaded or stored externally. Users can preview a piano-roll, compare original audio with transcribed MIDI, and download the raw MIDI for free. An optional cleaned MIDI version, which refines note timing and overlaps, is available for a one-time fee. No account or sign-up is required, and the tool works on both desktop and mobile browsers.

Best for: musicians, music producers, composers, music students, audio engineers

Key features

Transcribes audio files to MIDI directly in the browser without uploading files.
Supports multiple audio formats including MP3, WAV, FLAC, M4A, OGG, AAC, and compatible MP4/WebM.
Provides a piano-roll preview and allows comparison between original audio, raw MIDI, and cleaned MIDI.
Offers advanced settings for note detection and cleanup, including onset confidence and pitch bends.
No sign-up, no daily limits, and no watermark on MIDI downloads.
Runs on both desktop and mobile browsers.

Use cases

Convert a recorded melody or instrument performance into editable MIDI for use in DAWs.
Transcribe guitar or piano parts to study, slow down, or re-voice.
Extract basslines or leads from audio for sound design or remixing.
Generate sheet music from audio by importing MIDI into notation software.

Pros

Audio processing and transcription are fully local, ensuring privacy.
Raw MIDI downloads are free and unlimited.
No account or sign-up required to use the tool.

Limitations

Cleaned MIDI download requires a one-time payment and must be completed in the same browser session.

Screenshots

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