Online Tone Generator

440
Hz
Range: 1Hz - 20,000Hz • Crystal Clear Audio
50%
LR
Center
Current: Sine wave • Clean signal processing

Frequency Generator Tool

Generate crystal-clear audio frequencies from 1Hz to 20,000Hz with our advanced Hz generator and frequency generator tool

Perfect for audio professionals, musicians, and sound engineers. Test speakers, calibrate equipment, or create reference tones with precision.

Simple Frequency Generator That Actually Works

I've tried a bunch of online tone generators over the years, and most of them are either too complicated or sound terrible. This one's different - it covers 1Hz to 20,000Hz with clean audio that doesn't hurt your ears. Perfect for testing speakers, checking headphones, or just messing around with sound.

Four Waveforms You'll Actually Use

  • Sine Wave: Clean, pure tone - great for precise testing and calibration work
  • Square Wave: Sharp, digital sound - perfect for testing audio systems and finding distortion
  • Sawtooth Wave: Bright and buzzy - shows you what's really happening across all frequencies
  • Triangle Wave: Softer and gentler - easier on your ears during long sessions

The best part? It runs at 48kHz sample rate right in your browser - no downloads, no setup hassles. I use it for everything from checking my studio monitors to helping friends figure out their car audio problems. Works on phones too, which is surprisingly handy.

Key Features

Wide Frequency Range

Generate any frequency from 1Hz to 20kHz covering the full spectrum of human hearing

Multiple Waveforms

Choose from sine, square, sawtooth, and triangle waves for different applications

Professional Quality

48kHz sample rate with smooth transitions and artifact-free generation

Real-time Control

Adjust frequency, volume, and stereo balance in real-time with instant response

Frequently Asked Questions

Yes, our online tone generator is completely free to use. There are no hidden fees, subscriptions, or premium features. You can access all functionality including the full frequency range, all waveform types, and professional-quality audio generation at no cost.

Our tone generator supports frequencies from 1Hz to 20,000Hz (20kHz), covering the full range of human hearing and beyond for professional audio applications.

We offer four standard waveform types: Sine (pure tone), Square (digital/harsh), Sawtooth (bright/buzzy), and Triangle (soft/mellow). Each waveform has different harmonic characteristics suitable for various applications.

Yes, our frequency generator uses high-quality audio processing with 48kHz sample rates, smooth frequency transitions, and artifact-free generation, making it suitable for professional audio testing and calibration.

Yes, our online tone generator is fully responsive and works on smartphones, tablets, and desktop computers. The interface adapts to different screen sizes for optimal usability.

The tone generator works entirely in your browser and doesn't require an internet connection once loaded. However, you'll need to be online to initially access the website.