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Dev tools · February 7, 2019

Local Sheriff

Browser extension to show PII leaks to third-parties.

Local Sheriff launched on February 7, 2019 with 3 votes. The site was still online in September 2026, 7 years on.

What it does

Local Sheriff is a Browser extension to show PII leaks to third-parties

Think of Local sheriff as a recon tool in your browser (WebExtension). While you normally browse the internet, Local Sheriff works in the background to empower you in identifying what data points (PII) are being shared / leaked to which all third-parties. - ghostery/local-sheriff

Does a similar job

all alternatives →
  • Local Sheriff – Browser extension to show PII leaks to third-parties2018 · github.com · ▲79

    Think of Local sheriff as a recon tool in your browser (WebExtension). While you normally browse the internet, Local Sheriff works in the background to empower you in identifying what data points (PII) are being shared / leaked to which all third-parties. - ghostery/local-sheriff

  • 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…

  • HoundDog.ai Static Code Scanner2024 · hounddog.ai · ▲245

    Catch PII leaks in code & keep your PII inventory current

  • A Chrome extension that tracks front-end JavaScript at runtime2018 · github.com · ▲95

    A chrome extension tracks front-end JavaScript that uses DOM / jQuery APIs to manipulate html dom elements (e.g., change style, attach event listener) at runtime. - pilagod/js-tracker

  • Open Browser UseMay 2026 · github.com · ▲112

    Open-source browser automation for local AI agents

  • noirdocApr 2026 · noirdoc.de · ▲96

    PII guard for Claude Code to keep client data out of context

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