Transpose chords and notes between musical keys instantly. Enter chord progressions or individual notes, select source and target keys, and get results in seconds. Supports capo positions and shows all 12 possible transpositions at once. Uses flat key names for cleaner, more readable output.
Transposition shifts all notes or chords by the same interval, changing the key while preserving the relationships between notes. This is commonly used to adapt songs for different vocal ranges or instruments.
A capo on fret N raises the pitch by N semitones. When you select a capo position, the tool calculates the effective key change, so playing C shapes with capo 2 produces D sounds.
Flat key names like Db, Eb, Gb, Ab, and Bb produce cleaner, more readable output in most musical contexts. They avoid ambiguous sharp combinations and align with standard music notation conventions.
Yes. Switch to the Notes tab and enter individual notes separated by spaces, such as C D E F G. The tool will transpose each note to the target key while maintaining the same intervals.
The All 12 Keys tab displays your chord progression transposed into every possible key simultaneously in a comparison table. This is ideal for quick reference when exploring different key options.
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Maintained by Huang Bin · Last updated October 3, 2026