Test your headphone/earphone channels to ensure left and right are positioned correctly
Users
24
+2 in 30 days
Rating
5.0 / 5
unchanged in 30 days
Ratings
1
0 in 30 days
Store rank
#144K
#120K among extensions
Version
1.0.0
updated 10 Oct 2025
Users
monthly, 13 months
Latest, 21 Oct 2026:24 usersMove the mouse over the chart for any month
Ratings count
monthly, 13 months
Latest, 21 Oct 2026:1 ratingsMove the mouse over the chart for any month
The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.
About Stereo Check
A simple Chrome extension to test whether you're wearing your headphones or earphones correctly. Verify that the left channel is in your left ear and the right channel is in your right ear.
Features
- Test left and right audio channels independently
- Generates a clean 440Hz (default) sine wave tone
- Visual feedback showing which channel is playing
- Simple, intuitive interface
- Interface supports both light and dark themes
- Settings view allows setting theme, volume, and frequency
of the tone
Source Code:
https://github.com/navin09/cx-stereo-check