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Alternatives

Products that do what ProtoLeaks Privacy Protection does

Set it. Forget it. Stay invisible.

  1. 1

    Your browser's blind spots, Exposed.

    Jan 2026

  2. 2LP

    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

  3. 3BE
  4. 4
    NFT Guard236

    Protect yourself from fake NFTs and crypto scams

    2022

  5. 5GY

    Hello HN, I started building GeoSpoof after I noticed my IP says one country, but the browser still hands sites my real location. Websites were flagging me because of this discrepancy. I searched for a good geolocation spoofer, only to go down a rabbit hole that there are dozens of signals that your browser emits and no tool could cover them all on every platform. GeoSpoof overrides every location-related API to present one consistent signal for location. You can search a city, enter coordinates, or hit "Sync with VPN" to auto-detect your exit region and match it, which re-syncs when you…

    Jul 2026 · geospoof.com

  6. 6
    Cloak VPN153

    Stay safe online when using untrusted networks

    2014

  7. 7

    Stop sites from tracking your movements on the web

    2019

  8. 8

    Anti-tracking through "free" centralized content delivery

    2017

  9. 9

    Free VPN for Desktop — Privacy & Speed for Everyone.

    2021

  10. 10

    Embedded crypto wallet for Unity games

    2023

  11. 11
    Kameleo87

    Avoid browser fingerprinting and use virtual profiles.

    2019

  12. 12

    Secure your store & block visitors by IP, country and VPN

    2023

  13. 13
    Cloakly90

    Hide apps during screen shares – keep your desktop private

    Jan 2026

  14. 14

    Free enterprise grade security for your personal browser

    2023

  15. 15AR

    From the cryptic terminal commands to the innumerable ways to shoot yourself in the foot, I always struggled to use TLS certificates. I love how much easier (and cheaper) Let's Encrypt made it to get certificates, but there are still plenty of things to struggle with. That's why we built Relay: a free, browser-based tool that streamlines the ACME workflow, especially for tricky setups like homelabs. Relay acts as a secure intermediary between your ACME client and public certificate authorities like Let's Encrypt. Some ways Relay provides a better experience: - really fast, streamlined…

    2025 · anchor.dev

  16. 16KD

    I built this after seeing multiple teams accidentally ship API keys in their frontend code. The problem: Modern web development moves fast. You're vibe-coding, shipping features, and suddenly your AWS keys are sitting in a tag visible to anyone who opens DevTools. I've personally witnessed this happen to at least 3-4 production apps in the past year alone. KeyLeak Detector runs through your site (headless browser + network interception) and checks for 50+ types of leaked secrets: AWS/Google keys, Stripe tokens, database connection strings, LLM API keys (OpenAI, Claude, etc.), JWT…

    Nov 2025 · github.com

  17. 17IB

    BoringSSL and nghttp2. Matches JA3N, JA4, and JA4_R fingerprints. Supports HTTP/2, async/await, and works with Cloudflare-protected sites. Not trying to compete with curl_cffi - just a learning project that turned into something functional.

    Nov 2025 · github.com

  18. 18IB

    Hello Hacker News! I’m Tomasz, creator of Privacy Thing, a browser extension for Firefox and Chromium-based browsers. I’ve just released its Preview version. Privacy Thing aims to reduce browser fingerprinting—the tracking of users without cookies. It began as an internal project: a simple location simulator. Over time, I expanded it to cover more fingerprinting surfaces. It now has 13 protection categories affecting 50+ browser APIs and methods: Geolocation, time and locale settings, Canvas, WebGL, Audio, Navigator, Screen, Client Hints, Battery, WebRTC, Dedicated Workers, Service Workers,…

    Jul 2026 · privacything.com

  19. 19AO

    This is a small PoC Python project for web server access logs analyzing to classify and dynamically block bad bots, such as L7 (application-level) DDoS bots, web scrappers and so on. We'll be happy to gather initial feedback on usability and features, especialy from people having good or bad experience wit bots. *Requirements* The analyzer relies on 3 Tempesta FW specific features which you still can get with other HTTP servers or accelerators: 1. JA5 client fingerprinting (https://tempesta-tech.com/knowledge-base/Traffic-Filtering-b...). This is a HTTP and TLS layers…

    Oct 2025 · github.com

  20. 20

    Whack the moles your current scanner can't see.

    Aug 2026 · whack.sh

  21. 21FA

    I made FingerprinterJS, a small library with no dependencies that creates browser fingerprints from signals like canvas, WebGL, audio, fonts, userAgent, and screen info. It’s written in TypeScript, lets you enable/disable collectors, add custom data, and includes a simple suspicious-activity score. Would love feedback.

    Sep 2025 · github.com

  22. 22

    Check your IP, WebRTC, IPv6 and browser privacy exposure

    14d ago · privacy-leak-check.netlify.app

  23. 23CH

    There is a growing number of companies offering anti-bot protection SaaS to protect websites from scraping by automated bots based on Puppeteer/Selenium. Most of them rely on browser properties such as headers, javascript properties (window., navigator.), behavior analysis, to build device/user fingerprints and match it against a database of "whitelisted" fingerprints (typical user behavior/settings/device props etc). For the past few months, together with two other devs I have worked on a customized Puppeteer/Playwright scraping backend. It's essentially a drop-in…

    2021

  24. 24

    How consistent is your browser, really?

    Jul 2026 · liarjs.dev

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