DaTuner Online

Spec sheet

What it does

DaTuner is a chromatic instrument tuner that runs in a browser and detects pitch using the device microphone.Read 7 Oct 2026 · datuner.com

Privacy

Audio processing happens locally in the browser; audio is not recorded, stored, or transmitted.Read 7 Oct 2026 · datuner.com

Support

The privacy policy lists [email protected] for questions.Read 7 Oct 2026 · datuner.com

Accounts and personal data

The site says it requires no accounts and does not collect personal information; its hosting provider may keep standard server logs.Read 7 Oct 2026 · datuner.com

Accuracy method

The tuner uses the McLeod Pitch Method with parabolic interpolation for sub-cent resolution.Read 7 Oct 2026 · datuner.com

Advertising and cookies

The site uses Google AdSense, and says a consent banner is shown where required before advertising cookies are set.Read 7 Oct 2026 · datuner.com

Alternate tunings

Built-in alternate tunings include Drop D, Open G, and DADGAD.Read 7 Oct 2026 · datuner.com

Analytics

The site may use aggregate analytics that it says do not identify users personally.Read 7 Oct 2026 · datuner.com

Instrument coverage

The site lists tuners for string, wind and brass instruments, piano, and voice.Read 7 Oct 2026 · datuner.com

Note lock

The tuner can lock a target note to guide tuning toward it.Read 7 Oct 2026 · datuner.com

Pitch pipe

The pitch pipe plays sustained reference tones and lets users adjust octave and A4 reference.Read 7 Oct 2026 · datuner.com

Reference pitch

The tuner lets users set A4 from 400 to 480 Hz.Read 7 Oct 2026 · datuner.com

Strobe tuner

The browser strobe tuner is described as resolving differences down to a fraction of a cent and supporting intonation checks.Read 7 Oct 2026 · datuner.com

Usage limit

The tuner says accuracy in practice is limited by microphone quality and room noise.Read 7 Oct 2026 · datuner.com

Plans and prices

Every DaTuner Online plan and price →

Where Specifiction places it

• Musical Tuner Apps#16 of 327.7