Speaker & Headphone Tests
Left, right and both channels in 20 seconds. Then bass, sweeps and surround.
29 free tools · Nothing leaves your device
Audio Test Tools
right in your browser.
Free online speaker, headphone and mic tests, tone and noise generators, and tuners.
/
PopularSound TestMic TestOnline TunerWhite Noise GeneratorOnline Tone Generator
Start with what you need
Pick a check. Most take less than a minute.
Microphone & Voice
Watch your level move as you speak, then hear yourself back.
Instrument Tuners
Guitar, ukulele, violin, bass, cello and more, with reference tones.
Noise & Sleep Sounds
White, pink, brown and green noise with a sleep timer.
Tones & Frequencies
Any tone from 1 to 22,000 Hz, plus a live spectrum.
Music Tools
Find a song's BPM, cut an MP3 or make a ringtone.
All 29 tools
Six families. Every one runs in your browser.
- Noise GeneratorMix six noise colors with a sleep timer
- White Noise GeneratorSteady hiss with a warmth control
- Pink Noise GeneratorSofter, balanced noise
- Brown Noise GeneratorDeep, rumbling noise
- Binaural Beats GeneratorTwo tones, one beat. Use headphones.
- Fan NoiseBox, desk and ceiling fan sounds
- Green Noise GeneratorMid-range noise near 500 Hz
Why use Audio Test Tools
Everything runs on your device. Nothing you play, record or say is ever uploaded.
Private
Every tool runs in your browser. Sound from your microphone and the files you open never leave your device.
Honest
Each page explains what a browser can measure and what it can't, so you know how far to trust a result.
Free, no sign-up
Nothing to install and no account. Open a page, press Start, and the tool works on phones and computers.
Recently updated
- Banjo TunerUpdated
- Bass TunerUpdated
- BPM FinderUpdated
- Cello TunerUpdated
Frequently asked questions
Are these audio tests really free?
Yes. Every tool on Audio Test Tools is free to use, with no account, no download and no trial period. The site is paid for by a small number of display ads. Ads never appear inside a tool or next to its buttons, so the controls you need stay easy to reach on phones and computers.
Is my microphone audio uploaded or recorded?
No. Every tool runs inside your browser, so sound from your microphone and any file you open are processed on your own device and never sent to a server. Anything a tool saves, such as your volume setting, stays in your browser's own storage, and you can clear it at any time in your browser settings.
Do the tools work on phones and tablets?
Yes. Every page is designed for small screens first and works in current versions of Chrome, Safari, Firefox and Edge. Microphone tools ask for permission before they listen. Keep in mind that phone and laptop speakers play little bass below about 100 to 200 Hz, so use headphones or a speaker system for bass checks.
Can a browser measure how loud my speakers are?
Not in decibels of real sound. A browser can't know how loud your speakers or headphones are, because that depends on your volume settings, the device and the room. Our meters show levels relative to the loudest signal the device can handle, called dBFS. For true sound pressure levels you need a calibrated sound level meter.