001
popular
Speaker Test
Plays test tones through the left, right and both channels so you can confirm every speaker is…
18 tools · free · no account
Audio & Microphone Tests
Tone generators, frequency sweeps, channel checks and a live microphone meter, all built on the Web Audio API. Use them to confirm a speaker is wired correctly, find out how low your subwoofer really goes, or check that a headset microphone is picking you up before a call.
18 shown
002
Left Right Speaker Test
Plays a tone in one channel at a time, with a panel that lights up on the matching side so you…
003
Headphone Test
Checks both headphone drivers with separate left and right tones, and confirms the stereo…
004
Stereo Test
Confirms that stereo separation is working by playing distinct tones in each channel and then…
005
Audio Balance Test
Alternates between channels so you can hear whether one side is quieter, and adjust the…
006
popular
Online Tone Generator
Generates a pure tone at any frequency from 1 Hz to 22 kHz, with a choice of waveform, channel…
007
popular
Bass Test
Sweeps from 20 Hz up to 200 Hz so you can hear exactly how low your speakers or headphones…
008
Subwoofer Test
A slow sweep from 10 Hz to 120 Hz for checking how deep a subwoofer really goes and where it…
009
Treble Test
Sweeps from 2 kHz to 20 kHz to check tweeter performance and find where high-frequency…
010
Frequency Sweep Test
Glides smoothly across the whole audible range so you can hear dips, peaks and rattles in a…
011
Hz Test Tone Generator
Plays a steady tone at an exact frequency you choose — useful for calibration, tuning and…
012
popular
Microphone Test
Check your microphone with a short recording and playback. View the waveform and find help for…
013
Headset Microphone Test
Checks a headset microphone with a live level meter, waveform and a short recording, and shows…
014
Audio Latency Test
Plays a click through your speakers, listens for it with your microphone, and reports the…
015
High Frequency Hearing Test
Plays tones from 8 kHz to 20 kHz so you can find the highest frequency you can still hear on…
016
popular
BPM Tapper
Tap along to any track to find its tempo, with a rolling average and a reading of how steady…
017
Live Spectrum Analyser
Shows what your microphone hears as a live frequency spectrum on a logarithmic scale, with the…
018
popular
Pitch Detector
Listens through your microphone and shows the note being played, its frequency, and how many…
About these audio & microphone tests
Tone generators, frequency sweeps, channel checks and a live microphone meter, all built on the Web Audio API. Use them to confirm a speaker is wired correctly, find out how low your subwoofer really goes, or check that a headset microphone is picking you up before a call.
All 18 tools here are free and open immediately — there is no registration step, no credit card and no daily allowance to run out of. Most of them do their work in your browser, which means the page keeps working on a slow connection and your input is never sent to a server.