Overview
AI Red Team tool - hide & detect invisible Unicode on any web page. Test prompt injection, find ASCII smuggling, reveal hidden text
Stegano scans any web page for hidden Unicode characters and gives you tools to encode and decode them yourself. Built for AI red teamers, security researchers, and anyone who wants to see what's really in the text they're reading. What it detects: - Tags block characters (U+E0000–E007F) used in ASCII smuggling and prompt injection - Zero-width characters (joiners, non-joiners, direction marks) used in fingerprinting and tracking - AI watermark spaces (thin space, hair space, narrow no-break space) inserted by LLM providers How scanning works: - Click "Scan Page" or press Alt+Shift+S to scan the current page - Hidden characters are highlighted inline with color-coded markers: yellow for tags, orange for zero-width, pink for watermarks - The badge shows the count of hidden characters found (or a checkmark if clean) - Export findings as JSON for reporting Encode & Decode tools: - Encode any text into invisible Tags block Unicode — the output looks like empty space but carries your message - Decode invisible text by pasting it into the decoder — instantly reveals the hidden content - Save frequently used encoded texts as snippets for quick access via the right-click context menu Settings & customization: - Three sensitivity levels: Standard, Thorough, Paranoid — each adds more character ranges - Customizable highlight colors per character class - On-demand or automatic scan mode (auto-scan requires host permissions) - Auto-copy encoded output to clipboard - Snippet paste mode: insert directly at cursor or copy to clipboard - Dark and light theme Privacy: - No network calls. Ever. All processing happens locally in your browser. - No data collection, no analytics, no tracking.
Details
- Version1.0.0
- UpdatedMarch 2, 2026
- Size51.7KiB
- LanguagesEnglish
- DeveloperWebsite
Email
hi@dawid.ai - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
