Sound & music
Tone generator
Pure tone generator from 20 to 20,000 Hz with 4 selectable waveforms and a logarithmic slider covering the whole audio spectrum.
Generates any frequency from 20 to 20,000 Hz continuously with 4 selectable waveforms. The frequency slider is logarithmic so it covers the whole audio spectrum precisely. Volume is adjustable separately.
Android 7.0+ · Free to download
Key features
Continuous pure tones from 20 to 20,000 Hz (the full audible range)
4 waveforms: sine (soft), square (punchy), triangle (warm), sawtooth (bright)
Logarithmic frequency slider: lows and highs with the same precision
Volume adjustable independently of frequency
Real-time audio generation with no noticeable latency
Why use it?
Test a speaker's frequency response with a 440 Hz square wave
Sweep from 20 Hz to 20 kHz to find resonances in a room or an enclosure
Generate a sine A (440 Hz) as a tuning reference for acoustic instruments
Works offline
Most tools work without an internet connection.
No account
No sign-up, no email address required.
Free to download
Every tool is free. A one-time “Zero Ads” purchase removes the ads.
Tone generator is part of Tooliz
Along with 41 other tools. Free to download, on Android.
More tools: Sound & music
Quentin (QuentinRG)Independent developer · Paris
Tooliz is an Android toolbox I built independently to bring everyday utilities together. Free to download, no account needed, designed to be useful and simple.
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