Tone Generator
Generate Sine/Square/Sawtooth/Triangle waves with adjustable frequency (1Hz-20kHz) and L/R balance.
Real-time Waveform
440Hz
50%
Center
Safety Note: High frequencies or volumes can damage your hearing or speakers. Always start with a low volume and avoid prolonged listening.
About This Tool
The Online Tone Generator is a powerful audio tool that generates high-quality audio signals directly in your browser. Powered by the Web Audio API, it requires no downloads or plugins. It offers four basic waveforms (Sine, Square, Sawtooth, Triangle) with a frequency range covering the full human hearing spectrum (1Hz to 20,000Hz). Use it to test speaker/headphone frequency response, check L/R channel balance, relieve tinnitus, tune instruments, or conduct acoustic experiments.
Features
- 🌊 4 Waveforms: Supports Sine, Square, Sawtooth, and Triangle waves
- 📊 Real-time Visualizer: Display audio waveform in real-time for signal analysis
- 🎚️ Precise Control: Adjustable frequency from 1Hz to 20,000Hz with fine-tuning
- 🔊 Volume Control: Smooth 0-100% volume adjustment for safety
- ⚖️ L/R Balance: Stereo balance (Pan) control for testing stereo equipment
- 🛡️ Pure & Safe: Client-side Web Audio API implementation, no server recording
- 📱 Responsive: Works perfectly on both mobile and desktop