#065 · Browser Audio Tool

Ukulele Tuner

Use your microphone to detect pitch and compare it with standard G4–C4–E4–A4 ukulele tuning.

Live ukulele tuner

Microphone pitch detection
Live ukulele pitch tunerNo audio leaves this browser. Permission is requested only after you start.
Microphone not active
Choose an audio file to begin.
Audio is processed locally in your browser and is not uploaded.
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How to use Ukulele Tuner

  1. Allow microphone access.
  2. Set the available options for your task.
  3. Select Start tuner and wait for the local operation to finish.
  4. Review the measurements or compare the preview, then download the audio or report.

What this audio tool does

Use your microphone to detect pitch and compare it with standard G4–C4–E4–A4 ukulele tuning.

A short microphone frame is autocorrelated to find its repeating period. The detected frequency is compared with the selected standard ukulele string in cents.

Play one string at a time in a quiet room. Harmonics, background noise, and very soft notes can confuse simple browser pitch detection.

Supported formats and limits

Audio decoding follows the formats supported by your browser. WAV export uses 16-bit PCM. No file is uploaded.

InputBrowser-decodable audio
OutputPCM WAV or JSON analysis report
ProcessingLocal in this browser

Example and practical tips

For example, use Ukulele Tuner on a short copy first, listen or inspect the result, and only then process a long recording.

  • Close other audio-heavy tabs for smoother processing.
  • Keep an untouched copy of the source.
  • Play one string at a time in a quiet room. Harmonics, background noise, and very soft notes can confuse simple browser pitch detection.

Frequently asked questions

Does the ukulele tuner upload my audio?

No. Audio processing and analysis happen in your browser, so the selected file is not sent to a server.

Which browsers work with this Ukulele Tuner?

A current browser with Web Audio API support works best. Input codec support still depends on the browser.

Can I preview the result before downloading?

Yes. When the tool creates audio, the original and result players let you compare them before saving.

Why is the exported file a WAV?

PCM WAV is widely supported and can be encoded reliably in the browser without an external server or codec.

Will this tool reduce audio quality?

Play one string at a time in a quiet room. Harmonics, background noise, and very soft notes can confuse simple browser pitch detection.

Processing details

ToolUkulele Tuner
CategoryMusic Practice & Tone
PrivacyLocal browser processing

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