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Life & fun · alternatives · 2026

24 alternatives to Local Sheriff – 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

Local Sheriff is a browser extension that alerts users when websites send personally identifiable information to third parties. Designed for privacy-conscious internet users, the extension monitors data transmission in… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Local Sheriff – Browser extension to show PII leaks to third-parties launched in 2018; newer entries below may have overtaken it.

  1. 1

    Browser extension to show PII leaks to third-parties.

    2019 · github.com · its alternatives →

  2. 2

    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…

    Dec 2025 · github.com · its alternatives →

  3. 3

    Automated browser testing made easy.

    2017 · ghostinspector.com · its alternatives →

  4. 4

    Blocks ads, stops trackers, and speeds up websites

    2018 · ghostery.com · its alternatives →

  5. 5

    This is a demonstration of all the data your browser knows about you. All this data can be accessed by any website without asking you for any permission.

    2016 · webkay.robinlinus.com · its alternatives →

  6. 6

    Bringing transparency to the job market

    2024 · ghostjobs.io · its alternatives →

  7. 7

    We scraped a South Florida county public database, to better understand the behaviors of local law enforcement and even individual police officers.

    2020 · lawsuit.org · its alternatives →

  8. 8

    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

    2018 · github.com · its alternatives →

  9. 9

    Catch PII leaks in code & keep your PII inventory current

    2024 · hounddog.ai · its alternatives →

  10. 10

    Instantly know if a site is a scam, right from your browser

    2025 · chromewebstore.google.com · its alternatives →

  11. 11

    Your browser's blind spots, Exposed.

    Jan 2026 · its alternatives →

  12. 12

    Private, fast, tracker and ad-free mobile browsing

    2018 · ghostery.com · its alternatives →

  13. 13

    Track browser extension installations / threats in real-time

    2019 · extensionmonitor.com · its alternatives →

  14. 14
    noirdoc▲96

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

    Apr 2026 · noirdoc.de · its alternatives →

  15. 15

    Hey HN, I built an automated system that tracks malicious Chrome/Edge extensions daily. The database updates automatically by monitoring chrome-stats for removed extensions and scanning security blogs. Currently tracking 1000+ known malicious extensions with extension IDs, names, and dates. I'm working on detection tools (GUI + CLI) to scan locally installed extensions against this database, but wanted to share the raw data first since maintained threat intelligence lists like this are hard to find. The automation runs 24/7 and pushes updates to GitHub. Free to use for research,…

    Feb 2026 · github.com · its alternatives →

  16. 16

    Process your legal/medical/financial documents locally

    Mar 2026 · localpdf.io · its alternatives →

  17. 17FA

    Introducing QuaranTab: Companion extension to quarantine tabs so you can safely use them offline with private data I find myself wanting to use online format parsers to quickly decode that production JWT or decode a base64 Authorization header but cannot trust these websites to not leak my information. I thought to myself if only I could cut-off network access to this site, use it offline, and then throw away all browsing data. So I created an extension just for that. It uses Firefox contextual identities API (Containers) to isolate browsing data and inter-tab communication. Once the site is…

    2023 · its alternatives →

  18. 18

    A browser extension that displays Hacker News comments for the current webpage - jdormit/looped-in

    2018 · github.com · its alternatives →

  19. 19

    Open-source browser automation for local AI agents

    May 2026 · github.com · its alternatives →

  20. 20

    An innovative privacy focused approach to code documentation

    2025 · ghostnotedev.com · its alternatives →

  21. 21

    browser extension that sues online trackers

    2024 · joindatagator.com · its alternatives →

  22. 22

    Report suspicious sites to Google

    2019 · chromewebstore.google.com · its alternatives →

  23. 23

    Anti-phishing extension that alerts you of dangerous sites

    2021 · chromewebstore.google.com · its alternatives →

  24. 24

    hey guys, wanted to show one of my side projects i just made public. the idea is basically another osint tool for pentesters and bug bounty hunters. it watches certificate transparency logs and checks newly-seen domains for exposed stuff like .env files, open .git dirs, config files, db dumps and so on, and puts whatever it finds into a searchable db. you just search a domain (or part of one) and see what's exposed. it's read-only and free. one thing i've been thinking about adding is a way to register for certain keywords and get notified when something new shows up for that search. would…

    Jul 2026 · search.cerast-intelligence.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →