DTMF tone generator

Synthesize the dual-tone keypad beeps for a digit sequence and download them as WAV.

Key sequence0–9, *, #, A–D — up to 64 keys.

Tone length (ms, 40–500)Gap between keys (ms, 20–500)

Synthesized in this browser — nothing is recorded, and nothing is sent anywhere.

Standard DTMF matrix only (123A456B789C*0#D). The tones are generated, not decoded — this does not read tones out of recordings.

How to use

Standard 4×4 matrix at 44.1 kHz, tone 40–500 ms, gap 20–500 ms, up to 64 keys. Generated tones only — this does not decode DTMF out of a recording.