Tone Generator
Play sine, square & saw tones at any Hz
100% Private & In-Browser
Processed locally using client-side JavaScript. Your files and data never touch any server.
Instant & Unlimited
No registration, no waiting queues, and no limits on file conversions or generations.
What is Tone Generator?
Generate pure audio tones from 20 Hz to 20 kHz with sine, square, triangle and sawtooth waveforms. Used for speaker testing, hearing checks, and audio experiments.
How to use Tone Generator
Open Tone Generator in any modern web browser on your computer, tablet, or smartphone.
Select, drag, or drop your file directly into the Tone Generator workspace.
The tool processes your data in real time directly on your device using WebAssembly-compiled FFmpeg cores and browser WebCodecs hardware APIs.
Copy your generated result to your clipboard, preview the output, or save your file with a single click.
- 100% Client-Side In-Browser Execution — your inputs, files, and generated data never touch any remote cloud server.
- Instant Unlimited Free Usage — no daily limits, feature gates, paywalls, or account registrations required.
- Real Media Decoding — a WebAssembly FFmpeg core processes your audio and video on your own CPU.
- Play sine, square & saw tones at any Hz
- Handling private or confidential material that should not be uploaded to third-party cloud services.
- Generate pure audio tones from 20 Hz to 20 kHz with sine, square, triangle and sawtooth waveforms. Used for speaker testing, hearing checks, and audio experiments.
- Running a quick one-off task — once loaded, most tools keep working even if the connection drops.
- Content creators, podcasters, video editors, and audio engineers who need to demux and extract audio/video streams directly on local CPU cores without installing software.
Frequently Asked Questions
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