Open a MIDI file and see it as sheet music in seconds. Choose a track, set the quantization, split piano parts into treble and bass staves, check the detected key and time signature, then download a printable PDF or a MusicXML file for notation software.
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How to use the MIDI to Sheet Music
Open a MIDI file: drop it on the box or click to choose it. A short demo waltz is shown so you can try every option first.
Choose the track to notate, or keep All tracks combined for a piano reduction.
Set the quantization: 16th notes keep the most detail; eighth or quarter notes give a simpler, easier-to-read score for loosely played files.
Check the staff, key and time signature. Auto mode chooses a treble, bass or grand staff from the note range and splits the hands at middle C; move the split point if a hand lands on the wrong staff.
Press Play to hear the notated version, then Download PDF to print it or Download MusicXML to keep editing it in notation software.
How the MIDI to notation conversion works
A MIDI file does not contain notes as they appear on paper. It stores events: a key goes down at tick 960, comes up at tick 1430, with a resolution of typically 96 to 960 ticks per quarter note. Turning that into a score takes four steps:
Quantize. Each note start and end is rounded to the nearest grid line (quarter, eighth or 16th note). A note held for 470 ticks at 480 ticks per quarter becomes a clean quarter note.
Bar and beat structure. Notes are cut at bar lines and tied across them, and longer values are split so they do not hide the beat (for example a note starting on the "and" of beat 1 is written as an eighth tied to a quarter, not as a dotted quarter crossing the beat).
Spelling. MIDI note 66 can be written F♯ or G♭. The key signature decides: in D major it is F♯, in D♭ major it is G♭. Accidentals are shown when a note differs from the key signature and are remembered until the next bar line.
Staff assignment. For piano music, notes at or above the split point go to the treble staff (right hand) and the rest to the bass staff (left hand).
Which quantization should I choose?
Setting
Shortest note
Best for
16th notes
16th note (1/4 beat)
Files made in a sequencer or DAW, fast melodies, ornaments
Eighth notes
Eighth note (1/2 beat)
Live-recorded keyboard playing, pop songs, beginner arrangements
Quarter notes
Quarter note (1 beat)
Hymns and chorales, a quick overview of the harmony, very loose recordings
If the score shows lots of tied 16th notes or rests that you do not hear, the file was probably played live without quantization: try eighth notes. If a time signature looks wrong (bar lines in odd places), the file may lack a time signature event, so choose the right one manually.
Tips for a cleaner score
Select only the melody or piano track instead of all tracks: combining strings, bass and pads on two staves gives very dense chords.
Move the hand split down (to A3 or G3) if the right hand often dips below middle C, or up (to E4) for a left hand that plays high chords.
Keep Skip empty bars at the start on: many MIDI files begin with a count-in or silent bar.
Tempo, key and time signature changes in the middle of a song are not shown; the first value in the file is used for the whole score.
Frequently asked questions
How do I convert a MIDI file to sheet music?
Open the .mid file in this tool, choose which track to show and how finely to quantize the rhythm, and the notation appears immediately. Then click Download PDF for a printable score or Download MusicXML to open it in notation programs such as MuseScore, Finale, Sibelius or Dorico.
Is my MIDI file uploaded anywhere?
No. The file is read and converted entirely in your browser with JavaScript. Nothing is sent to a server, so it also works with unreleased or private music.
Why does the sheet music look different from how the MIDI sounds?
MIDI stores exact timings in ticks, while notation needs standard note values. Notes are snapped to the chosen grid, notes that overlap on the same staff are shown as chords cut at the next onset, and sustain pedal is ignored. Recorded (live-played) files usually read best with eighth-note quantization; files made in a sequencer convert almost one to one.
How is the key signature found?
If the MIDI file contains a key signature event it is used. Otherwise the tool compares how long each pitch class sounds with the Krumhansl-Schmuckler key profiles and picks the best-matching major or minor key. You can always choose a different key signature from the list; it only changes spelling, not pitch.
What is MusicXML and why would I download it?
MusicXML is the standard exchange format for sheet music. Unlike a PDF it keeps every note, rest, tie, clef, key and time signature as editable data, so you can import it into a notation editor to add lyrics, dynamics or fingerings and fix anything the automatic conversion got wrong.
Can it handle triplets, swing or multiple voices?
The converter uses straight binary note values (whole down to 16th, including dotted values), so triplets and swing are rounded to the nearest grid position. Each staff is written as a single voice of notes and chords. For complex music, export MusicXML and refine it in a notation editor.
Does it work with drum tracks?
Channel 10 drums are left out by default because General MIDI drum numbers are instruments, not pitches. Tick Include drum channel or select the drum track if you want to see its rhythm, but proper percussion notation needs a dedicated drum staff.
Are all the tools on FreeToolCabin tested for quality and accuracy?
Yes! Every tool on our site undergoes automated Q/A testing in real browser environments to ensure high precision, correct output, and zero errors. If you happen to spot a bug or have a suggestion, please contact us at [email protected] and our team will review it right away.