
CLOKR — AI Privacy Shield
Masks your sensitive data before it leaves your browser.
What it does
CLOKR is a Chrome extension that protects your privacy when you use AI chat tools. It runs in your browser and detects common sensitive data patterns (emails, IBANs, tax codes, phone numbers) in what you type. Before the message is sent, CLOKR replaces them with placeholders, so the AI only sees anonymous tokens. All processing is local, no CLOKR servers, and the code is fully open source.
Does a similar job
all alternatives →
- LPLocal 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…
- LBLocal Browser AIOct 2025 · blog.alexewerlof.com · ▲15
Using the new Prompt API to build a free open source privacy-first chat extension that runs on Chrome or Edge on Linux, Mac, Windows and ChromeOS
Identify AI data leaks,public or privateDec 2025 · ▲17LeakLake🔒Monitors AI chats, detects leaks, and alerts you⚠️
AI Safe Chat GuardFeb 2026 · chromewebstore.google.com · ▲3Stop leaking sensitive data to AI chatbots

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