Non-ASCII Character Detector

by Kaonashi · Tools

Manifest V3 Free

View in Chrome Web Store Data as of 18 Oct 2026

Detects non-ASCII characters on webpages that may indicate AI-generated text.

Users

+1 in 30 days

Rating

0.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#272K

#227K among extensions

Version

1.0

updated 29 Jun 2026

Users

monthly, 4 months

Latest, 18 Oct 2026: 5 usersMove the mouse over the chart for any month

Ratings count

monthly, 4 months

Latest, 18 Oct 2026: 0 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 Non-ASCII Character Detector

Detects non-ASCII characters on any webpage using the pattern [^\x00-\x7FàçèéêëôïîùûüÀÇÈÉÊËÎÏÔÙÛÜ€$©]. The characters like curly quotes, em dashes, ellipses, are commonly inserted by AI language models. Not a definitive signal, but a useful one. Highlights matches in-page, lets you navigate between occurrences, and works on SPAs and Gmail.