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Gizmetto
Gizmetto

Online audio tools

Test your speakers, find the note you're singing, measure noise in decibels and play any frequency. Free audio tools that run in your browser.

All audio tools

  • Pitch detector

    Sing, hum or play a note and see what it is, how many cents sharp or flat you are, and find your vocal range.

    Uses your microphone

  • Guitar tuner

    Tune your guitar with the microphone: pick a tuning, play a string and follow the needle.

    Also forUkuleleViolinBass

    Uses your microphone

  • Ukulele tuner

    Tune a soprano, concert or tenor ukulele to G C E A with the microphone, in high G or low G.

    Uses your microphone

  • Violin tuner

    Tune each violin string, G D A E, with the microphone and a needle that shows how far off you are.

    Uses your microphone

  • Bass tuner

    Tune a 4-string bass to E A D G, or a 5-string bass down to B, with the microphone.

    Uses your microphone

  • Speaker test

    Play the left, right and both channels, run a quick check, sweep the frequencies and test the bass.

    Plays sound

  • Headphone test

    Test headphones and earbuds: left and right, balance, a center check, bass and the frequency range.

    Plays sound

  • Sound test

    One tap plays a test sound. If you hear nothing, follow the steps to find the cause.

    Plays sound

  • Mic test

    Check that your microphone works: a live level, a short recording you play back, and help if it is silent.

    Uses your microphone

  • Decibel meter

    Measure noise in dB(A) with min, average and max, peak hold, a 60 second graph and calibration.

    Uses your microphone

  • Tone generator

    Play any frequency from 1 Hz to 22 kHz in four waveforms, with sweeps, notes and a hearing check.

    Plays sound

  • BPM tapper

    Tap a key or the pad on every beat to find a song's tempo, then play it back with the metronome.

    Tap along

Which tool do I need?

Which tool to use for each task
If you want toUse
Find out what note you're singing or playingPitch detector
Find your vocal rangePitch detector
Tune your guitarGuitar tuner
Tune your ukuleleUkulele tuner
Tune your violinViolin tuner
Tune your bassBass tuner
Check that your sound works at allSound test
Check that left and right are the right way roundSpeaker test
Find rattles or check your bassSpeaker test
Check your headphones or earbudsHeadphone test
Check that your microphone worksMic test
Know if it's too loud where you areDecibel meter
Play a reference pitch or a test toneTone generator
Check how high you can hearTone generator
Find the tempo of a songBPM tapper
Play a click track at a tempoBPM tapper

How the tools work

  • Your browser does the work

    The tools use the Web Audio API built into every modern browser. There is nothing to install.

  • The microphone is used only on Start

    A tool asks for the microphone when you tap Start, and it turns off when you tap Stop or leave the page.

  • Nothing is uploaded

    Sound is processed on your device and never recorded, sent or stored.