Alternatives

Products that do what GlassBox does

See what your browser is leaking. Fix it.

1. 1
   Firefox Lockbox▲105

   Take your passwords everywhere

   2018

2. 2
   Blurs▲226

   Hide your browser info

   2024

3. 3
   StealthHound▲196

   Your browser's blind spots, Exposed.

   Jan 2026

4. 4
   Firefox Lockwise▲263

   Take your passwords everywhere.

   2019

5. 5
   LeaksID▲318

   Enrich private docs with dynamic invisible anti-leak marks

   2021

6. 6
   DropTidy▲121

   Remove sensitive photo data, 100% client-side & zero uploads

   Jan 2026

7. 7
   Browserprint▲137

   Are you uniquely identifiable?

   2017

8. 8
   WebGazer.js▲157

   Eye tracking on the browser

   2016

9. 9AS
   A Simple Website for Checking Cloudbleed from Browser's History▲132

   2017 · cloudbleed.github.io

10. 10WS
    What's my browser?▲121

    2014 · whatsmybrowser.org

11. 11LS
    Local Sheriff – Browser extension to show PII leaks to third-parties▲79

    2018 · github.com

12. 12
    GlassWire▲112

    Extra security & privacy via network monitoring

    2014

13. 13
    Track This by Firefox▲121

    We open 100 tabs to make trackers think you're someone else

    2019

14. 14
    HasMySecretLeaked▲160

    Check if your secrets and API keys have leaked on GitHub.

    2023

15. 15CI
    Check if your browser is vulnerable to the Apple SSL bug▲118

    2014 · gotofail.com

16. 16
    Donut Browser▲154

    Open Source Anti-Detect Browser with Unlimited Profiles

    Apr 2026

17. 17
    CloudTabs▲139

    A browser in a computer in your browser

    2024

18. 18LP
    Leaking personal data in your browser▲9

    2016 · medium.com

19. 19TY
    Test your E-Mail for IP Leaks▲50

    2013 · emailipleaktest.com

20. 20
    HeimWall▲34

    Catch secrets before they leak into Cursor & Claude

    Jul 2026 · heimwall.ai

21. 21
    Privacy Leak Check▲1

    Check your IP, WebRTC, IPv6 and browser privacy exposure

    13d ago · privacy-leak-check.netlify.app

22. 22
    IPChecks▲1

    Your IP, instantly. DNS, WHOIS & leak tests in your browser

    8d ago · ipchecks.app

23. 23DM
    Didledgerfuck.me▲8

    In light of the recent Ledger database breach (https://cointelegraph.com/news/ledger-users-threaten-legal-action-after-hacker-dumps-personal-data), I wanted to see if my address had been leaked after purchasing a Ledger Nano S for myself. HaveIBeenPwned unfortunately doesn't show if just your email or your email as well as address has been leaked, so I decided to set this up. I wish Ledger would just set this up for their customers, but apparently that is far too difficult for them. So here you all go, I wish you the best :/ https://www.didledgerfuck.me/

    2020

24. 24DY
    Does your browser supports WebAssembly?▲11

    2020 · wasm.joway.io

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