LarkTune

LarkTune is a free online tuner that works directly in your web browser. Just open the page, allow microphone access, and play a note. It's for any musician who needs a fast, accurate way to tune without downloading an app or creating an account. It's simple.

The tool is a chromatic tuner, meaning it detects any note you play and shows you how close you are to perfect pitch. This makes it useful for a wide range of instruments. For convenience, it also has dedicated pages for standard tunings for guitar, bass, ukulele, and violin, showing you the target note for each string.

Its design focuses on speed and accuracy.

• Microphone pitch detection: The tuner analyzes sound from your device's microphone in real time to find the exact frequency. No cables are needed.
• Cents-accurate display: A clear visual meter shows you precisely how many cents you are sharp or flat, turning green when the note is in tune.
• Adjustable reference pitch: You can change the standard A4 reference from the default 440 Hz to other common standards like 432 Hz or 442 Hz.
• Works on any device: It runs on phones, tablets, and laptops. Since it's a web page, you don't have to install anything.

While it's not a native app, you can add LarkTune to your phone's home screen. This creates an icon for quick access, and it's designed to be ready to work offline once loaded. It's completely free to use, with no ads or paywalls getting in the way of the tuning meter.