Revelio

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

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.