AI Prompt Injection Scanner

by flowio · flowio.co.uk · Developer Tools

Manifest V3 Free

View in Chrome Web Store Data as of 16 Oct 2026

Scans any page for prompt injection attacks — hidden text, zero-width characters, suspicious meta tags and more.

Users

+12 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#121K

#101K among extensions

Version

2.0.0

updated 16 Mar 2026

Users

monthly, 8 months

Latest, 16 Oct 2026: 37 usersMove the mouse over the chart for any month

Ratings count

monthly, 8 months

Latest, 16 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 AI Prompt Injection Scanner

AI Prompt Injection Scanner What is a prompt injection attack? AI assistants like Claude, ChatGPT, or any AI built into a browser, work by reading content and following instructions. Prompt injection is when someone hides malicious instructions inside a webpage, designed to be invisible to you but readable by the AI. The goal is to hijack the AI's behaviour: making it recommend a scam site, reveal your private data, pretend to be something it isn't, or ignore its safety guidelines entirely. These attacks are invisible by design. The text might be white on a white background, written in a font the size of a pixel, buried in a hidden HTML comment, or disguised using invisible Unicode characters, completely undetectable to the human eye, but the AI reads every word.