Audio tools

In-browser audio utilities — tone generation and sound experiments.

• Signal Generator Generate tones, sweeps, and noise in your browser — pick a waveform (sine, square, sawtooth, triangle), dial in a frequency, run a linear or log sweep, or switch to white or pink noise. All processing happens on your device.
• Spectrogram Art Type text and synthesize audio whose spectrogram displays that text — load the result into the Visualizer's spectrogram mode and see your words appear as an image in the frequency spectrum. All synthesis happens on your device; nothing is uploaded.
• Tone Generator Play a pure 440 Hz sine tone right in your browser, with a live waveform. Audio starts only when you press play and stops the moment you leave.
• Tuner Detect the pitch of your instrument or voice in real time — see the nearest note, frequency in Hz, and how many cents sharp or flat you are. Mic audio stays on your device.
• Visualizer Visualize audio in real time — pick mic input, an uploaded audio file, or the signal generator output as your source, then switch between waveform, spectrum, and scrolling spectrogram views. All processing happens on your device; nothing is uploaded.