Online Tone Generator. Free, Simple and Easy to Use. Simply enter your desired frequency and press play. You will hear a pure tone sine wave sampled at a rate of 44.1kHz. The tone will continue until the stop button is pushed. The tone generator can play four different waveforms: Sine, Square, Sawtooth and Triangle.

This multiple tone generator allows you to enter any number of frequencies which can then be played simultaneously. The tones can be one of the following waveforms: sine, square, sawtooth and triangle.

Free online frequency sweep generator. This frequency sweep tool allows you to enter any two frequencies and a duration into the three boxes below. Once the play button is pressed, the frequency sweeper will then play a tone that begins at the first frequency and sweeps to the second frequency in the duration provided.

Online Tone Generator. Binaural Beat Generator. When two sine waves of slightly different frequencies (eg f1 and f2) are played on a loudspeaker, the waves will undergo interference.

Online Tone Generator offers three flavours of noise: white, pink and brown. White noise has a flat spectrum, pink noise has a spectrum inversely proportional to its frequency, and brown noise has a spectrum inversely proportional to the square of its frequency.

Online Tone Generator. The 60 second online hearing test. It's free, simple and no sign up required. How high can you hear? This 60 second tone helps you determine the highest frequency your ears can detect.

Online Tone Generator. The 60 second online subwoofer test. It's free, simple and no sign up required. How low can you go? This page contains a low frequency sweep and a series of tones for testing the response of subwoofers. Click the play button below to begin the test.

The Online Tone Generator can be used to create Dual Tone Multi Frequency (DTMF) signals commonly heard on telephone dial pads. Each tone is simply the sum of two sine waves. Click and hold the dial pad buttons to hear each tone.

Skeptics will claim this is nothing more than pseudo-science. Here at OnlineToneGenerator.com, we have provided you with the tools to make your own mind up. Use the Tone Generator below to listen to the 432Hz online for free, and draw your own conclusions.

Online Tone Generator. The Pips (Greenwich Time Signal) To mark the start of the hour, the BBC broadcasts a series of 6 tones officially known as the Greenwich Time Signal or more commonly "The Pips". The first 5 tones last 0.1 seconds and mark the 5 seconds preceding a new hour.