What is Nolex Chrome extension?

It's a free browser tool that scans clipboard pastes and file uploads to AI sites for secrets like API keys and DB creds, redacting before send — all local.

Does Nolex work with Claude and Gemini?

Yep, any AI using fetch/XHR for uploads/pastes in Chrome. Not Firefox yet.

Can Nolex miss sneaky secrets?

Regex covers 30+ patterns, but custom-obfuscated stuff might slip — no scanner's perfect.

☁️ Cloud & Infrastructure

Nolex: Chrome Extension That Sniffs Out Your Leaked Secrets Before AI Chatbots Gobble Them Up

You've done it: pasted code with live creds into an AI chatbot. Nolex stops that cold, running scans right in your browser. But is it the fix we need, or just another band-aid?

DevTools Feed Apr 11, 2026 4 min read

Nolex Chrome extension dialog highlighting detected AWS keys in code paste before AI upload

⚡ Key Takeaways

Nolex runs 100% locally in your browser, scanning for 30+ secret patterns before AI ingestion. 𝕏
Intercepts clipboard pastes and file uploads on ChatGPT, Claude, and more via fetch monkey-patching. 𝕏
Rejects SaaS model to avoid irony; minimal permissions make it trustworthy amid rising AI leak scandals. 𝕏

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#AI Security #browser extension #nolex #secret scanning

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Originally reported by dev.to

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