Browse the toolkit

Music & audio tools

13 focused tools, ready to use in your browser.

Convert scientific note names, MIDI notes and frequencies, or compare a pitch interval under your chosen A4 tuning.

Calculate note, tuplet and bar durations from an explicit BPM beat unit, dot count and time signature.

Generate a bounded sine-wave tone as a downloadable 48 kHz mono16-bit PCM WAV, with a digital level and optional fade.

Inspect, frame-trim, peak-normalize or swap channels in a bounded local16-bit mono or stereo PCM WAV file.

Transpose a chord-only chart, preserving supported quality modifiers, slash bass, whitespace and barlines.

Create a downloadable patterned click track with accent, rest, swing, tempo and bar controls, entirely in this tab.

Join matching PCM WAV files in selection order, optionally insert exact digital silence, and download one audio file.

Mix two matching WAV files with a signed time offset, independent gains and explicit overload handling.

Add a bounded train of delayed echoes to a local PCM WAV, with separate dry, first-echo and feedback gains.

Trim quiet edges or remove long quiet runs from a PCM WAV using an explicit threshold, minimum gap and padding.

Create a local waveform SVG or PNG image using min/max sample envelopes and an explicit channel layout.

Plot a bounded local WAV as a time-frequency PNG with explicit FFT windows, channel and amplitude scales.

Practise with a local metronome, bar accents and equal subdivisions. Tap a tempo, explicitly start or stop, and download your session settings.