Online instrument tools

Online instrument tools

No install needed — your browser microphone detects pitch in real time

Popular instruments

Pick one and start tuning; acoustic and electric guitar share the same tuner

Acoustic guitar Acoustic guitar HOT Standard and Drop D tuning for singer-songwriters Electric guitar Electric guitar Same tuning set as acoustic; direct pickup signal works too Bass Bass 4-string and 5-string with low-frequency detection Ukulele Ukulele High-G and Low-G tunings

More tuners

Traditional Chinese instruments, keyboard and bowed strings

Piano Piano Full 88-key range with adjustable A4 Violin Violin Standard G-D-A-E tuning Guzheng Guzheng NEW 21-string D major tuning Guqin Guqin NEW Four common tunings incl. zhengdiao

Practice tools

Ear training and rhythm, no instrument required

Pitch test Pitch test Ear training for relative pitch Metronome Metronome BPM, time signatures and Tap Tempo

Guides

Tuning charts, how-tos and troubleshooting

Guitar tuning chart Every string of 20 common tunings Guzheng 21-string tuning D tuning plus how to reach G and C Guqin tuning guide Five tunings and the rules behind them Why guitars go out of tune Six causes and a quick check Guitar chord charts Fingering charts for 10 open chords

How it works

  1. 1
    Allow the microphone

    The first time you press Start tuning, your browser asks for microphone access. Allow it.

  2. 2
    Play one note

    Play a single string or note at a time, keep the instrument close and reduce background noise.

  3. 3
    Tune with the needle

    A left needle means flat, right means sharp; the central green zone means in tune.

FAQ

Are these tools free or do I need to install something?

Both free and install-free — everything runs directly in your browser.

Is my microphone audio uploaded?

No. Web Audio analyzes sound on your device in real time; nothing is recorded, uploaded or stored.

Why do acoustic and electric guitar share one tuner?

Both use the same standard tuning (E-A-D-G-B-E). Open the guitar tuner and pick the preset you need.

Does it work on a phone?

Yes. iOS Safari and Android Chrome are supported; a quiet room gives the most reliable reading.

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