SecretPaste

What it does

SecretPaste warns you before a secret leaves your clipboard. Intercepts paste events in ChatGPT, Claude, Gemini & more. Detection is 100% local — nothing sent anywhere. Free for common patterns, Pro adds masking & more coverage.

SecretPaste is a Chrome extension and desktop app that prevent accidental leaks of API keys into AI chats with local-only detection and instant masking.

SecretPaste protects you in the browser and on desktop — detecting secrets before they reach AI chats, and helping you mask or block API keys instantly. An API key was detected in your message. It has been masked to prevent accidental exposure. A small tool that prevents a big mistake: pasting secrets into AI chats. Secret detection runs in your browser. No servers, no accounts, no data leaving your device. Install and forget. Sensible defaults with quick toggles for allowlist and masking. Stop accidental leaks with instant masking and clear warnings before you hit paste. Fast UI, minimal permissions, and patterns that match the tokens developers paste every day. Never accidentally leak an…from automated.ly

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  Local Privacy Firewall-blocks PII and secrets before ChatGPT sees themDec 2025 · github.com · ▲111

  OP here. I built this because I recently caught myself almost pasting a block of logs containing AWS keys into Claude. The Problem: I need the reasoning capabilities of cloud models (GPT/Claude/Gemini), but I can't trust myself not to accidentally leak PII or secrets. The Solution: A Chrome extension that acts as a local middleware. It intercepts the prompt and runs a local BERT model (via a Python FastAPI backend) to scrub names, emails, and keys before the request leaves the browser. A few notes up front (to set expectations clearly): Everything runs 100% locally. Regex detection…

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  Secret SanitizerAug 2026 · secretsanitizer.com · ▲2

  I kept pasting code with hardcoded API keys, database credentials, and auth tokens into ChatGPT while debugging. Copy a failing function, paste it into AI, and realise your AWS secret key or Stripe token was right there in the snippet. So I built (with some help from Claude) a simple Chrome extension that intercepts the paste, detects secrets using local regex, and replaces them with [MASKED] before they reach the chat. Originals stay in a local AES-256 encrypted vault for unmasking. No servers. No network requests. No tracking. ~41 KB, zero dependencies. Don't take my word for it: 'grep -r…

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  Identify AI data leaks,public or privateDec 2025 · leaklake.com · ▲17

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