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SoundToMIDI
What it is
SoundToMIDI converts audio recordings into editable MIDI notes in a browser, with no software installation required. It accepts MP3, WAV, FLAC, M4A, OGG, AAC, and compatible MP4 or WebM audio up to 100 MB. Audio is decoded and transcribed on the user's device; the maker says it does not upload or store audio, generated MIDI, note events, or filenames on its servers. The converter uses Spotify's open-source Basic Pitch model for polyphonic, instrument-agnostic pitch detection. After conversion, you can transpose notes, filter a pitch range, adjust timing, edit individual notes, and compare Raw MIDI with Cleaned MIDI. The free plan offers conversion and Raw MIDI downloads without signup or a daily limit. A Music Export Pack costs $2.99, paid once and includes eight files for that result and its edits, such as edited MIDI, score PDF, MusicXML, practice WAVs, a note-map PNG, a note-list CSV, and a quick-start guide. WAV exports can contain up to 10 minutes of notes. The maker cautions that transcriptions can have missing, extra, mistimed, or incorrect notes.
For and against
For
- Free Raw MIDI downloads require no signup.
- No daily conversion limit is listed.
- Audio transcription happens on the user's device.
- Edit notes and compare Raw MIDI with Cleaned MIDI.
- Accepts audio files up to 100 MB.
Against
- Transcriptions may contain missing, extra, or incorrect notes.
- Paid downloads must be completed on the same browser and device.
- Locally saved results may be unavailable after browser data is cleared or a task expires.
- WAV exports are limited to 10 minutes of notes.
The verdict
SoundToMIDI pairs local browser-based conversion with controls for refining notes and a free Raw MIDI option. Expect to review transcription results, and note the device and browser limits on paid downloads.
Who it suits
SoundToMIDI may suit musicians who want to turn recordings into editable MIDI in a browser. It works in modern mobile browsers and offers note editing before export.
Plans and prices
Free Raw MIDI
Audio conversion · Raw MIDI download
Read 9 Oct 2026 · soundtomidi.com
Music Export Pack
8 files · applies to this result and edits · new conversions need a new pack · WAV exports up to 10 minutes of notes
Read 9 Oct 2026 · soundtomidi.com
On the record
- Audio formats
- The converter accepts MP3, WAV, FLAC, M4A, OGG, AAC, and compatible MP4 or WebM audio, with a 100 MB file limit.soundtomidi.com · read 9 Oct 2026
- Browser and mobile use
- The service runs in modern mobile browsers and requires no software installation.soundtomidi.com · read 9 Oct 2026
- Download availability
- Paid downloads must be completed in the same browser and device, and locally saved results may be unavailable after browser data is cleared or the local task expires.soundtomidi.com · read 9 Oct 2026
- Editing
- Users can transpose notes, filter a pitch range, adjust timing, edit individual notes, and compare Raw MIDI with Cleaned MIDI.soundtomidi.com · read 9 Oct 2026
- Export files
- The paid Music Export Pack includes edited MIDI, score PDF, MusicXML, two practice WAVs, a note-map PNG, a note-list CSV, and a quick-start guide.soundtomidi.com · read 9 Oct 2026
- Integrations
- The maker says standard MIDI files open in DAWs and notation software including Ableton Live, FL Studio, Logic Pro, GarageBand, Cubase, Reaper, and MuseScore.soundtomidi.com · read 9 Oct 2026
- Local processing
- Audio is decoded and transcribed on the user's device, and the maker says it does not upload or store audio, generated MIDI, note events, or filenames on its servers.soundtomidi.com · read 9 Oct 2026
- Output limitations
- The maker cautions that transcription may produce missing, extra, mistimed, or incorrect notes, and its automatic score draft does not infer tuplets, pedal, fingering, or tempo changes.soundtomidi.com · read 9 Oct 2026
- Payment
- Optional one-time payments are processed by Stripe, which receives checkout information; SoundToMIDI says it does not receive or store full card numbers.soundtomidi.com · read 9 Oct 2026
- Privacy analytics
- The privacy page says audio and MIDI stay local and describes limited analytics and security information processed by service providers such as Cloudflare and Stripe.soundtomidi.com · read 9 Oct 2026
- Purpose
- SoundToMIDI converts audio recordings into editable MIDI notes in a browser.soundtomidi.com · read 9 Oct 2026
- Recording limit
- The browser tool can record a melody through a microphone for up to 60 seconds.soundtomidi.com · read 9 Oct 2026
- Transcription model
- The converter uses Spotify's open-source Basic Pitch model for polyphonic, instrument-agnostic pitch detection.soundtomidi.com · read 9 Oct 2026
