Leshy Tuner
is an online HTML5 chromatic instrument tuner that uses your system's microphone to tune guitars and other instruments.
(Browser Requirements: Recent versions of Google Chrome work best, but Firefox. Mobile browsers may work on fast devices. For help getting this working, see the initial blog post.) NOTE: If the tuner isn't showing any activity, make sure your microphone is enabled and the recording volume is high enough. Intro & Help Web Widget 