Real-time Protection

Stop data leaks before they happen.

ShieldLens runs inside your browser and warns you in real-time when uploads or pasted text contain sensitive data.

Works on Chrome / Edge (Chromium). Not published in Chrome Web Store yet — install via Developer Mode in ~2 minutes.
2-Minute Install
  1. Download ShieldLens (.zip)
  2. Unzip the folder
  3. Open chrome://extensions
  4. Enable Developer mode
  5. Load unpacked → select the unzipped folder
Real-time alerts + risk score

What ShieldLens does

Upload Protection

Intercepts uploads and warns you before sensitive info leaves your browser.

  • SSNs, passwords, API keys
  • Private keys & secrets
  • Risk score + remediation

Paste Protection

Detects risky pasted content in forms, chats, and support portals.

  • Instant warning modal
  • Blocks accidental leaks
  • Plain-English explanation

AI-Powered Detection

Uses an AI scan to classify sensitive content beyond simple pattern matching.

  • Context-aware classification
  • Redaction suggestions
  • Safer sharing by design

Install ShieldLens

Step 1 — Download & unzip

  • Click Download ShieldLens.
  • Unzip the folder (you need a normal folder).
  • Verify the folder contains manifest.json.
Why unzip? Chrome “Load unpacked” requires the extracted extension folder.

Step 2 — Open Chrome Extensions

  1. Open Chrome
  2. Go to chrome://extensions

Step 3 — Enable Developer mode

  1. Toggle Developer mode ON (top-right)
  2. New buttons appear: Load unpacked, Pack extension, etc.

Step 4 — Load ShieldLens

  1. Click Load unpacked
  2. Select the unzipped ShieldLens folder
  3. ShieldLens appears in your extension list
If you get an error, you likely selected the wrong folder. Choose the folder that contains manifest.json.

Step 5 — Test it

Paste into a file called test.txt and upload it anywhere.
AWS_SECRET_ACCESS_KEY=abcd1234fake
PRIVATE_KEY=0x923482394823948239
123-45-6789
password=mysecretpassword

ShieldLens will warn you with a risk score, detected types, and recommended fixes.

Trust & Safety

Privacy-first scanning

ShieldLens is designed to minimize exposure. It scans only what’s needed to generate a risk report. Detection logs can be stored as metadata (not raw documents) and can be encrypted for auditing.

Clear, actionable warnings

Every alert includes a score, evidence snippets, and exactly what to do next (remove secrets, rotate keys, use environment variables, etc.).

FAQ

Why not a Chrome Web Store install?

Web Store publishing requires review + compliance. For now, Developer Mode enables quick installation.

How do I update ShieldLens?

Download the newest zip, unzip it, then go to chrome://extensions and press Reload.