Theory, tempo, and tuning
Music tools
Chords, keys, degrees, metronome, BPM, and tuners for music practice.
When you need to quickly understand the key of a progression, label chord degrees, or check which triads belong to a scale, a full notation editor is often too much.
Music tools run locally in the browser and help with harmony, tempo, and instrument tuning without dedicated music software.
This category includes chord analysis, key chord building, metronome practice, BPM tapping, instrument tuners, and approximate key detection from audio.
Music tools in this category
6 tools
Audio Key Detector
Estimate the musical key of an uploaded audio file with local browser analysis.
- Music theory analysis
- Degree and function labels
- Local browser processing
Tap BPM Counter
Determine the tempo of music (BPM) in real time with simple keystrokes.
- Start, pause, reset, and adjustment controls
- Readable timing display
- Local session state with no account required
Chord Key Finder
Find likely major or minor keys from a typed chord progression with scale-degree labels.
- Music theory analysis
- Degree and function labels
- Local browser processing
Guitar and Ukulele Tuner
Tune guitar, ukulele, bass, violin, and mandolin with live microphone pitch detection.
- Music theory analysis
- Degree and function labels
- Local browser processing
Key Chord Builder
Build the diatonic chords of a selected key and label every degree with its harmonic role.
- Music theory analysis
- Degree and function labels
- Local browser processing
Metronome
Professional online metronome with selection of tempo and sound accents for rehearsals.
- Start, pause, reset, and adjustment controls
- Readable timing display
- Local session state with no account required