Upload an MP3
Choose a piano recording or any MP3 from your device. Solo piano and clear melodies work best for the most accurate transcription.
PRIVATE · BROWSER-BASED · NO SIGNUP
MP3 to Piano MIDI Converter — Free, No Signup
Turn any MP3 into an editable piano MIDI file. Our AI-powered transcription with the Piano preset extracts notes optimized for piano — preview, edit, and download your MIDI right in your browser.
Drop your MP3 here
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Your audio stays on your deviceNo signupMP3 · Free: up to 5 min · Upgrade: up to 15 min
PIANO-FOCUSED TRANSCRIPTION
Convert MP3 to Piano MIDI in Your Browser
Upload any MP3 and our AI model, powered by Spotify Basic Pitch, will detect the notes and transcribe them into a standard MIDI file. The Piano preset uses optimized settings — sensitivity 58%, minimum note length 90ms, pitch bends off — to deliver clean, accurate transcriptions for piano recordings.
Whether you have a solo piano piece, a chord progression, or a melody-rich song, the converter runs entirely in your browser. Your audio stays on your device, and you get a downloadable MIDI file ready for editing in any DAW or notation software.
THREE SIMPLE STEPS
How to Convert MP3 to Piano MIDI Online
Select the Piano preset
Choose Piano from the audio type options. The preset tunes the AI for piano-optimized note detection, chord recognition, and velocity sensitivity.
Preview and download your MIDI
Compare the original audio with the MIDI preview, fine-tune notes in the piano roll editor, and download the MIDI file when you are satisfied with the result.
OPTIMIZED FOR PIANO
Why Use Our MP3 to Piano MIDI Converter?
Piano-optimized preset
The Piano preset uses specialized detection settings (sensitivity 58%, minimum note 90ms) to capture piano notes, chords, and velocity with higher accuracy than generic converters.
Browser-based privacy
Your MP3 stays on your device. Unlike server-based tools, no audio is uploaded — keeping your recordings completely private.
Preview before downloading
Compare the original audio with synthesized MIDI playback and inspect every detected note in the piano roll before you download.
Built-in MIDI editor
Move, resize, join, or delete notes in the piano roll editor. Adjust sensitivity and minimum note length to refine the transcription — all without leaving your browser.
WHAT THE MODEL HEARS
How Piano MIDI Conversion Works
MP3 stores recorded sound as a waveform. MIDI stores musical instructions — which note, when to play it, how long, and how hard. To convert MP3 to piano MIDI, the AI model analyzes the audio spectrum, detects note onsets and sustained pitches, and maps them to MIDI note events.
The Piano preset applies a lower sensitivity threshold (58%) to focus on clear, intentional notes while filtering out background noise. The minimum note length of 90ms removes short, percussive artifacts that are not part of the piano performance. Pitch bends are disabled since piano notes do not have continuous pitch variation.
GET THE BEST RESULTS
Tips for Better Piano MIDI Conversion
- Use a clean solo piano recording with minimal background noise.
- Start with a short section (30-60 seconds) to test the quality.
- Always select the Piano preset for piano-focused audio.
- Raise sensitivity for quiet or delicate piano passages.
- Lower sensitivity if the conversion picks up too many extra notes.
- Increase minimum note length to filter out short artifacts.
COMMON QUESTIONS
Frequently Asked Questions About Piano MIDI Conversion
Can I convert MP3 to piano MIDI for free?
Yes, converting is free in your browser. New visitors get 1 free download, and verified users get an extra free download. To keep downloading afterward, you can buy a permanent credit pack (no subscription).
How accurate is the piano MIDI conversion?
The Piano preset is optimized for solo piano recordings with sensitivity at 58% and minimum note length at 90ms. It works best with clear piano audio, solo melodies, and simple arrangements. Complex multi-instrument mixes may need cleanup in the built-in editor.
Does the converter work on polyphonic piano music?
Yes. The AI model can detect multiple notes at the same time, making it suitable for chords and polyphonic piano pieces. The Piano preset handles dense chords and fast passages better than generic presets.
Is my MP3 uploaded to a server during conversion?
No. All processing happens locally in your browser using a lightweight AI model. Your audio never leaves your device, making it completely private and secure.
What audio formats are supported for piano MIDI conversion?
The converter accepts MP3 files up to 5 minutes. For best results with piano conversion, use a clear recording with minimal background noise or reverb.
Can I edit the MIDI notes after conversion?
Yes. The built-in piano roll editor lets you move, resize, join, or delete notes with undo/redo support. You can also adjust sensitivity, minimum note length, and pitch bends to fine-tune the transcription.
What is the difference between MP3 and MIDI for piano?
MP3 is recorded audio (a piano performance). MIDI is a set of instructions (which notes were played, when, and how hard). Converting MP3 to piano MIDI transcribes the notes so you can edit, transpose, or playback through any virtual instrument.
Can I convert a full song to piano MIDI?
Yes, but results vary. A full song with multiple instruments, drums, and vocals will produce a mixed MIDI output focused on the dominant melodic lines. For best results, use a solo piano recording or a clear instrumental section.
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READY WHEN YOU ARE
Convert your MP3 to piano MIDI today
Start with a short, clear piano recording for the best result.