13 browser audio tools (Web Audio).
No sign-up. No tracking. No ads.
Adjustable-tempo metronome with time signature, accented downbeat and visual beat.
Tap along to a song to find its tempo (BPM), averaged over recent taps.
Sine / square / triangle / sawtooth tones at any Hz. Speaker test, hearing test, tuning reference.
Play a tone gliding between two frequencies, linear or logarithmic, any waveform.
Generate binaural beats with brainwave presets or custom frequencies. Use headphones.
Play white, pink or brown noise for focus or sleep, with volume and a timer.
Play telephone keypad touch-tones (DTMF), single keys or a whole dialed number.
Find the highest frequency you can hear, with age reference points. Fun, not medical.
Record from your mic, download as WebM or MP4. Pause / resume. Browser-only — no upload.
Cut a clip from an audio file by start/end time, download as WAV. In your browser.
Duration, sample rate, channels and bitrate of an audio file. Decoded locally, no upload.
Hear typed text spoken aloud via Web Speech API. Pick voice + rate + pitch + volume. Local OS voices.
Speak into your mic, watch text appear. 60+ languages. Chrome / Edge / Brave / Chromium browsers.
A set of browser audio tools built on the Web Audio API: keep time with a metronome, find a song's tempo, generate tones, sweeps, binaural beats, white/pink/brown noise and phone touch-tones, test your hearing range, and inspect, record or trim audio files. Everything is generated or processed live in your browser; nothing is recorded to a server or uploaded.
No. Tones and noise are generated live in your browser, and file tools (info, trimmer) decode audio locally with the Web Audio API. Nothing is recorded to a server or uploaded.
Browsers block audio from starting on its own, so the first play needs a tap or click. After that the tools play freely until you stop them.
Binaural beats require headphones (each ear must hear a different tone). The others work on speakers or headphones, though headphones give cleaner results for the hearing test and frequency sweeps.
Metronome, BPM tapper, tone generator, frequency sweep, binaural beats, noise generator, DTMF tones, hearing test, audio recorder, audio trimmer, audio file info, text-to-speech and speech-to-text.