Alternatives
Products that do what FireKey does
Anti-fingerprint browser for multi-account isolation
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2016 · robinlinus.github.io
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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
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Hey HN! Happy to finally launch Stack. We made it because we like to put apps into production quickly, and authentication & user management was taking up way too much time. We have components like and that automatically adapt to whatever theme & design system you're using. Check the blog post to see the example with Radix UI and Joy UI. Also, there's an admin dashboard for monitoring and editing accounts. Stack is 100% AGPL/MIT-licensed, so you can self-host it. Cheers!
2024 · stack-auth.com
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See every signal a website can read from your browser, and how identifiable it makes you. Runs entirely in your browser, nothing is sent.
13d ago · glassbox.codecanary.org
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Persistent visitor identity-fraud prevention & intelligence
Jul 2026 · digitalfingerprintjs.com
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Hi HN, I built DevicePrint after running into problems with duplicate accounts and unreliable cookies in my own projects. DevicePrint is a lightweight device fingerprinting tool designed for developers. It helps identify devices across sessions without relying on cookies. Use cases include fraud detection, preventing duplicate signups, and security-sensitive workflows. I'd really appreciate feedback — especially around privacy concerns or edge cases you’ve run into. Link: https://deviceprint.io
Jan 2026
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Hi HN! I've been working lately on unifying firefox configuration. Many people work on creating custom `userChrome.css` files and modules, browser user scripts, etc, but it's hard to actually use these a lot of the time. It usually involves cloning a repo, finding a folder and lots of copy paste. My tool (firebuilder) has an interactive CLI to select what to apply, (e.g. firefox hardening, custom CSS, etc) then creates a brand new profile folder for you. You can also seamlessly port from an existing profile folder to preserve all of your history, bookmarks, extensions, etc. For those more…
2024 · github.com
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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
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2018 · github.com
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I'm a consultant and I normally deal with multiple clients. I need an isolated browser for each to maintain my sanity. I could create separate profiles in Chrome and Firefox but the main issue is when you click on a link outside of the browser (e.g. in your IDE), in which profile should it be opened? I wrote a Python script that redirects URLs to the correct browser instance and set it as my default browser. Over time, the script has grown and become essential to my work. I cleaned it up and open-sourced it. Hope that someone else may find it useful too!
2024 · github.com
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Kameleo 5.1 ships Fingerprint Inspector, a DevTools-style panel that shows exactly which fingerprinting calls a site makes, patched into Blink instead of monkey
28d ago · kameleo.io
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Spoof Me▲3Switch browser identities. Reduce fingerprint tracking.
Jul 2026 · chromewebstore.google.com
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