ToneGen Free Audio Tone Generator

ToneGen is an easy-to-use program that can be used as a sine wave generator, sound frequency generator or signal generator that can create audio test tones, sweeps or noise waveforms.

ToneGen Features:

• Generate sine wave, square wave, triangular waveform, saw tooth waveform and impulse sound waves
• White noise generator or pink noise generator
• Sound generator supports frequencies from 1Hz to 22kHz
• Simultaneous tone generation of up to 16 tones at once
• Mono or separate stereo operation for dual tones or beats
• Log or linear sweep tone generation
• Play generated tones or save tones as a wav file
• Send tone files using Email and FTP

ToneGen Applications:

• Generate test tones for radio audio level alignment
• Calibration and testing of sound equipment or speakers
• Demonstration of audio principles to students
• Create harmonics by generating multiple sound frequencies
• Acoustics testing and equalization
• White noise generator
• Audio band signaling
• Hearing Tests (under medical supervision).

What’s New

Version 3.25

UI improvements
Fixed: minor bug

Ratings and Reviews

3.7 out of 5
3 Ratings

3 Ratings

muzzylin ,


This is a APP I use every night to lull me to sleep I had a very bad problem with relaxing at bedtime And this has done the trick Or if I get tense during the day just sitting down and listening to the water is so relaxing ( maybe to much HaHa )

go2car ,


the app is quite basic, but unfortunately it is unable to succesfully upload files via ftp. Exporting is limited to email or ftp, which is much more difficult than it should be. There are no obvious support options either. For $5, it's disappointing

ReneO93 ,

10 stars! Very accurate

I double checked the frequency with a multimeter and it was EXACT!!
Beautiful. Highly recommend


NCH Software
6.6 MB

Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2016 NCH Software
In-App Purchases
  1. ToneGen All Current Features $4.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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