Browser Audio Tools
Choose the tool for your task. Sound starts after your action; local files and microphone samples stay on your device.
Music Tools
Practice rhythm and tune one note at a time.
Online Metronome
Use this online metronome to set a practice tempo, tap along with a recording, or build a click pattern with audible accents and muted beats. Start quietly and keep the page visible during practice.
Open tool →Online Instrument Tuner
Use this online instrument tuner to compare one live note with an equal-tempered tuning reference. Enable your microphone, play a clear single note, and use the note, frequency, and cents reading to make small adjustments.
Open tool →Audio Processing
Work with local recordings: change tempo or transpose pitch.
Audio Time Stretcher
Load a local audio file, preview a slower or faster tempo, select a practice loop, and export a genuinely processed WAV with optional pitch preservation.
Open tool →Online Pitch Shifter
This pitch shifter changes the pitch of a local recording while retaining its duration. Choose semitones and cents, compare Original and Shifted audio, then export the processed samples as a WAV file.
Open tool →Tone and Signal Tools
Generate browser audio references with controlled settings.
Online Tone Generator
Generate a controlled digital audio signal in your browser, inspect its basic properties, route it in stereo, or save a short WAV file without uploading audio anywhere.
Open tool →Sine Wave Generator
Use this sine wave generator as a pure tone generator for one sinusoidal frequency, with fine pitch, stereo control, signal details, and local WAV export.
Open tool →Online Frequency Generator
Set an exact frequency in hertz, make fine or octave-sized changes, and compare the numerical signal properties with what your playback system lets you hear.
Open tool →Frequency Sweep Generator
Move a generated tone continuously between two frequencies with a defined curve, duration, direction, waveform, level, and stereo channel.
Open tool →Multiple Tone Generator
Mix up to eight simultaneous browser oscillators, with independent frequency, waveform, level, pan, mute, and solo settings plus conservative master headroom.
Open tool →White Noise Generator
Use this white noise generator to play a controlled broadband signal, shape its brightness, limit its frequency range, set a session timer, or save a short WAV entirely in your browser.
Open tool →Brown Noise Generator
Generate brown noise locally, adjust its low-frequency emphasis and filter limits, compare it with pink or white noise, set a timer, and export a short WAV without an upload.
Open tool →Binaural Beats Generator
This binaural beats generator sends a different tone to each stereo channel, displays the exact left and right frequencies, adds optional noise, and exports the same channel-separated signal locally.
Open tool →528 Hz Tone Generator
Generate an exact 528 Hz digital tone, make tenth-of-a-hertz adjustments, compare it with 432 Hz, 440 Hz, or a custom reference, and export a local WAV.
Open tool →Dual Tone Generator
Play two controlled browser oscillators together, isolate either source, compare their frequency difference, position them in stereo, or export the combined signal without uploading audio.
Open tool →DTMF Tone Generator
Press a telephone keypad symbol or schedule a short sequence using the standard low-group and high-group frequency pairs, with all synthesis and export performed locally.
Open tool →Pink Noise Generator
Generate continuous pink noise in the browser, compare it with white and brown noise, watch a live spectrum, set a listening timer, or export a short local WAV.
Open tool →432 Hz Tone Generator
Use a sine-wave A4 reference at 432 Hz, compare it directly with 440 Hz, inspect equal-tempered note values, or create a short reference file locally.
Open tool →Solfeggio Frequencies Generator
Explore the common modern set of nine Solfeggio frequencies, listen to one controlled tone, build a timed sequence, compare two values, or export a selected tone as a local WAV.
Open tool →Online Dog Whistle
Use this online dog whistle as a cautious high-frequency oscillator and pulse reference, with runtime sample-rate validation and a conservative default output.
Open tool →Playback Checks
Inspect consumer playback paths. These observations are not calibrated measurements.
Online Test Tone Generator
Configure a repeatable reference signal with a known frequency, waveform, channel, level, and playback duration for practical audio-path checks.
Open tool →Online Speaker Test
Follow a clear sequence to confirm left/right routing, sample broad frequency regions, choose a manual tone, and run an optional short sweep.
Open tool →Online Subwoofer Test
Explore low-frequency playback from 20 to 200 Hz with cautious sine presets, a steady tone, or a timed upward or downward bass sweep.
Open tool →Online Hearing Test & Hearing Range Check
Make a simple, low-level record of which browser-generated frequencies you report hearing in this session, without clinical scoring or diagnostic claims.
Open tool →