loveappsFree online tone generator
Play a pure tone at any frequency. Type an exact number, pick a wave shape, or sweep from low to high to test speakers and headphones.
Open the tone generator →Get the free Android app (works offline)
How to use it
- Type a frequency or use the slider.
- Choose sine, square, triangle or sawtooth.
- Use sweep to glide between two frequencies.
- Start at low volume, especially with headphones.
Questions
What can I use it for?
Testing speakers and headphones, checking your hearing range, tuning, science class demos and finding rattles in a car or room.
Which wave should I pick?
Sine is the purest tone. Square and sawtooth sound buzzier because they contain many overtones.
Why can’t I hear very high tones?
Hearing range drops with age, and small speakers struggle above 18 kHz.