Revelio icon

Revelio

Extension Actions

How to install Open in Chrome Web Store
CRX ID
hdcjpjjfangdnigmhdnnmhndanhejeem
Description from extension meta

Reveals potentially hidden text on webpages (tiny font, invisible color, offscreen, etc.).

Image from store
Revelio
Description from store

Revelio is a security-focused browser extension that helps you inspect webpages for potentially hidden or deceptive text.

Attackers, prompt injectors, and low-quality pages sometimes hide content using CSS tricks (tiny font, low contrast, off-canvas positioning, transparent text, clipped elements, pseudo-content, and more). Revelio scans the current page and surfaces suspicious text so you can quickly review it.

What Revelio does:
- Detects text that may be intentionally hidden from normal view
- Highlights findings directly on the page
- Lets you click a finding to jump to where it lives in the DOM
- Shows confidence-oriented scan modes: Everything, Sweep, Default, Precise
- Exports findings as JSON for reporting or incident review

Built for security workflows:
- Web content review
- Prompt-injection and hidden-instruction checks
- QA and trust/safety investigations
- General page integrity auditing

Privacy-first by design:
Revelio runs locally in your browser on the active tab. It does not send page content to external servers.