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Sing2Notes
Karlsruhe, Germany
What it is
Sing2Notes transcribes sung vocals into notes shown as sheet music. You can upload an audio file, paste a YouTube link, or record in the app; supported upload formats include MP3, WAV, MP4, MIDI, and FLAC. The app can work with vocals alongside multiple other instruments, and Edit Mode lets you change notes. Transcriptions can also appear as a piano roll and be exported as PDF sheet music, quantized or unquantized MIDI, or MusicXML. The maker says these formats can be imported into software of your choice. Sing2Notes runs in a browser and on Android and iOS. Its free option provides unlimited demos covering the first 20 seconds of a recording. Sing2Notes Pro (Instrument Pro) costs $14.99 a month with monthly billing; annual billing is equivalent to $6.24 per month. It includes 50 full transcriptions per month, each up to 15 minutes, and unlimited demo transcriptions. A free trial is also available. Klangio presents its apps for music teachers, producers, vocalists, composers, and transcribers. Transcription quality depends on the music, and difficult vocal passages may be misread.
For and against
For
- Accepts audio uploads, YouTube links, and recordings
- Can transcribe vocals with other instruments playing
- Edit Mode allows note changes
- Exports PDF, MIDI, and MusicXML
Against
- Free demos cover only the first 20 seconds
- Difficult vocal passages may be transcribed incorrectly
- Full plan limits users to 50 monthly transcriptions
- Each full transcription is limited to 15 minutes
The verdict
Sing2Notes offers several ways to supply music and export or edit its vocal transcriptions. The free demos are short, while full transcription access has monthly and duration limits.
Who it suits
Sing2Notes may suit vocalists, composers, producers, music teachers, and transcribers who want to turn sung parts into editable notation. It offers browser and mobile access, with several export formats for use in other software.
Plans and prices
Free demo transcriptions
Unlimited demos · first 20 seconds of each recording
Read 21 Oct 2026 · klang.io
Sing2Notes Pro (Instrument Pro)
50 full transcriptions per month · up to 15 minutes per transcription · unlimited demo transcriptions
Read 7 Oct 2026 · klang.io
Paid full-transcription plans
Full transcriptions · additional features · plan choice required
Read 21 Oct 2026 · klang.io
On the record
- Accuracy limitation
- The maker says transcription quality depends on recording quality and difficult vocal passages may contain mistakes.klang.io · read 21 Oct 2026
- API
- Klangio offers a public application process for APIs covering vocal music transcription, source separation, beat tracking and chord recognition.klang.io · read 21 Oct 2026
- API outputs
- The API page says its transcription endpoint can produce MIDI, MusicXML, PDF or GP5 from piano, guitar, bass and vocal recordings.klang.io · read 21 Oct 2026
- API pricing
- The API Basic tier is free with 50 requests, 15-second maximum audio and one request per minute; paid Startup and Business tiers are listed at $99 and $499 monthly.klang.io · read 21 Oct 2026
- API security
- Klangio says credit-card payments for API plans are processed through a PCI-compliant banking partner.klang.io · read 21 Oct 2026
- Audio formats
- The service accepts formats including MP3, WAV, MP4, MIDI and FLAC.sing2notes.klang.io · read 21 Oct 2026
- Company founded
- LinkedIn lists Klangio as founded in 2018.linkedin.com · read 21 Oct 2026
- Company headquarters
- Klangio lists Karlsruhe, Germany as its headquarters and business location.linkedin.com · read 21 Oct 2026
- Company legal name
- The maker is Klangio GmbH, registered with the Mannheim local court under HRB 730768.klang.io · read 21 Oct 2026
- Company size
- LinkedIn lists Klangio in the 11–50 employee range.linkedin.com · read 21 Oct 2026
- Compatibility
- The maker says exported formats can be imported into software of the user's choice.klang.io · read 7 Oct 2026
- Editing
- Edit Mode lets users adjust notes inside the application.klang.io · read 21 Oct 2026
- Exports
- Sing2Notes exports sheet music as PDF, quantized and unquantized MIDI files, and MusicXML.klang.io · read 7 Oct 2026
- Free demos
- Users can make unlimited free demo transcriptions of the first 20 seconds of a recording.klang.io · read 7 Oct 2026
- Help documentation
- The Help Center lists 36 Sing2Notes articles across nine categories, updated October 1, 2026.klang.io · read 21 Oct 2026
- Input methods
- Users can upload audio, paste a YouTube link or record through a microphone.klang.io · read 21 Oct 2026
- Inputs
- Users can upload an audio file, paste a YouTube link, or record music directly in the app.klang.io · read 7 Oct 2026
- Integrations
- The Google Play listing names MuseScore, Sibelius, Ableton Live, Logic Pro, FL Studio, Cubase and GarageBand as compatible software.play.google.com · read 21 Oct 2026
