Tone Generator (Web Audio)
Generate precise sine, square, sawtooth, and triangle waves at any frequency. Live waveform display, adjustable volume, and frequency slider for tuning, testing speakers, and audio experiments.
The Musician's Knife for Musician / Audios
Eleven instruments and references — powered by Web Audio
Practice and reference tools — offline forever. The Musician's Knife gives musician / audios 11 specialised tools in a single HTML file that runs entirely offline.
The Musician's Knife gives musicians eleven practical tools in a single HTML file, powered by the Web Audio API for real sound generation. Generate precise tones, tune your instrument with a live chromatic tuner, keep time with a visual metronome, tap out BPM, look up chords and scales on an interactive piano, explore the circle of fifths, reference note frequencies, generate DTMF tones, train your ear with intervals and chord recognition, and play a live MIDI keyboard with WAV recording — all completely offline.
WHAT'S INSIDE
11 tools in a single HTML file
Chromatic Tuner
Live microphone pitch detection with an analogue needle display. Shows detected note, cents deviation, and frequency. Lock to a specific note for targeted tuning. Adjustable A4 reference (415–466 Hz).
Visual Metronome
Rock-solid tempo from 20–300 BPM with time signatures from 1 to 12 beats. Visual beat indicators, accent on beat one, adjustable volume, and keyboard shortcuts for hands-free control.
BPM Tap Counter
Tap along to music and get an accurate BPM reading averaged over your taps. Shows individual tap intervals, running average, and instant visual feedback. Reset and re-tap anytime.
HOW IT WORKS
Three steps. No setup.
1
Download the file
Purchase The Musician's Knife and download a single HTML file. No installer, no account, no setup.
2
Open in any browser
Double-click to open in Chrome, Firefox, Safari, or Edge. Works on any operating system.
3
Start working
Your data stays in your browser's local storage. Nothing is uploaded. Ever.
COMPLIANCE & GEOGRAPHY
Global
Works in any country. No server dependency, no regional restrictions.
FAQ
Frequently Asked Questions
Why should Musician / Audios use The Musician's Knife?
The Musician's Knife is built for musician / audios who need music & sound tools without cloud dependencies. Tone generator, chromatic tuner, metronome, BPM tap counter, chord finder, scale visualiser, circle of fifths, frequency table, DTMF generator, ear trainer, and MIDI studio with WAV recording. Real sound from a single file.
Does The Musician's Knife work offline?
Yes. The Musician's Knife is a single HTML file that runs entirely in your browser. No internet connection required. Your data never leaves your machine.
Is The Musician's Knife a subscription?
No. The Musician's Knife is a one-time purchase ($39). No monthly fees, no renewals, no price increases.
What tools are included in The Musician's Knife?
The Musician's Knife includes 11 tools: Tone Generator (Web Audio), Chromatic Tuner, Visual Metronome, BPM Tap Counter, Chord Finder with Piano, Scale Visualiser, Circle of Fifths, Note Frequency Table, DTMF Generator, Ear Trainer, MIDI Studio & WAV Recorder. All accessible from a single HTML file.
Can I try The Musician's Knife before buying?
Yes. Every product page includes an interactive demo you can try in your browser. No signup required.
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No cloud One fileOne-time purchase
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