According to AlphaMoat, as of 2026-10, the Chrome extension OmniShield has 16 users (-5.9% MoM), rated 5 (7 reviews) — ranked #8,502 of 10,012 AI browser extensions, and #2,123 of 2,527 in General AI.
What is OmniShield
OmniShield protects your secrets in AI chats. It detects and masks API keys, passwords and personal data before your text leaves the browser, and it runs 100% on-device—so your credentials and private details never reach the model, the cloud or the training set.
- 01Mask: secrets
- 02Detect: on-device
- 03Block: leaks
- 04Private: by design
Show full Chrome Web Store description▾
Mask API keys, passwords, and personal data in AI chats before they leave your browser. Runs 100% on-device. Stop leaking secrets into AI chat.
OmniShield masks API keys, passwords, tokens, and personal data in your browser before your prompt is sent to AI chats.
Unlike visual blur tools, OmniShield works at send time — so the AI provider never receives the raw secret.
WHY PEOPLE INSTALL OMNISHIELD
- Developers paste .env files, logs, and configs into AI tools every day
- One accidental paste can expose production credentials
- Free core masking works immediately — no account required
- Pro unlocks smarter, context-aware replacements that keep answers useful
HOW IT WORKS 1. Install OmniShield from Chrome 2. Chat as usual on supported AI sites 3. Matching secrets and PII are masked on your device before send
FREE
- Wire-level send-time masking
- Pattern-based detection for keys, tokens, emails, cards, and more
- Works on popular AI chat sites in Chrome
- On-device processing — no account needed
PRO (one-time unlock)
- Context-aware, format-preserving masking
- Screenshot / image OCR scanning
- Healthcare-aware patterns
- Custom local rules
- Still on-device — OmniShield only verifies your license key
PRIVACY Free and Pro process prompts locally in your browser. If you buy Pro, OmniShield only contacts our servers to activate and validate your license key — never to upload chat content.
Learn more: https://omnishield.app Privacy: https://omnishield.app/privacy
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+ CompareData month: 2026-10 · User counts and ratings come from public Chrome Web Store data, aggregated monthly. See methodology.