Does it need microphone permission?

No. It generates audio output with Web Audio and does not request microphone access.

Can this damage speakers or hearing?

Very loud sustained tones can be uncomfortable or harmful. Start with low gain and moderate volume.

/media local tool

Suggest an improvement

Tone Generator

Tune waveform, frequency and gain for device or signal-chain testing.

Local execution receiptinput path disclosedTool content stays out of MonoTools URLs and API requests.

Working input: Browser memory
Cross-tool handoff: Session only · 10 min
URL payload: Never
Export: Explicit action

Verify it: open DevTools Network, clear the log, use the tool, then inspect fetch/XHR requests. Page assets and optional aggregate analytics may use the network; tool input is not included.

Full privacy model

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How to use

01Choose a waveform and frequency.
02Click Play to start the local oscillator.
03Adjust gain carefully, then stop when finished.

FAQ

Does it need microphone permission?: No. It generates audio output with Web Audio and does not request microphone access.
Can this damage speakers or hearing?: Very loud sustained tones can be uncomfortable or harmful. Start with low gain and moderate volume.

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