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Show HN: Explore what the browser exposes about you

Show HN: Explore what the browser exposes about you

5 comments

·November 24, 2025

I built a tool that reveals the data your browser exposes automatically every time you visit a website.

GitHub: https://github.com/neberej/exposedbydefault

Demo: https://neberej.github.io/exposedbydefault/

Note: No data is sent anywhere. Everything runs in your browser.

oersted

Interesting!

For me it says 1 in 17,179,869,184+, but scrolling through all the variables, the vast majority should be the same for any MacBook Chrome user.

It would be great to see the stats of each individual characteristic.

coffeecoders

Hi HN,

I’ve been experimenting with ways to reduce my browser fingerprint and exploring techniques to anonymize fingerprint data.

So I built this.

This is kind of like a lighter, more thorough version of CreepJS but entirely client side. I don’t maintain massive lists of time zones or do server-side comparisons to calculate uniqueness. Instead, it automatically surfaces everything a browser exposes, explaining each item in detail.

null

[deleted]

alentred

EFF has a similar tool: https://coveryourtracks.eff.org/

No idea how representative either tool is.

evgpbfhnr

I get a new fingerprint id everytime I refresh the page (firefox, linux) -- so that might be sampling a tiny bit too much. audio and canvas fingerprint are constant though so it's probably plenty enough...