MIDI file inspector
Inspect MIDI tracks, program changes, tempos and timed notes, then export structured JSON.
See an example →Audio & music
Check background noise, tune your guitar and keep time with a metronome using local audio processing.
Audio spectrogram viewer
Visualise a short audio recording as frequency energy over time and export a labelled image.
See an example →Guitar chord-diagram builder
Draw supplied guitar fingerings with custom tuning and export SVG or PNG diagrams.
See an example →Metronome
Keep time with tap tempo, accented beats and a clear visual pulse.
See an example →Background noise test
Check microphone background noise before a call, compare changes and export a report. Audio stays on your device.
See an example →Guitar tuner
Tune your guitar online with chromatic pitch detection and eight tuning presets. Free, with microphone audio processed on your device.
See an example →