# Best way to compare digital fingerprints?

**URL:** https://discuss.privacyguides.net/t/best-way-to-compare-digital-fingerprints/31252
**Category:** Questions
**Tags:** guide
**Created:** 2025-09-19T23:07:27Z
**Posts:** 8

## Post 1 by @Uzbeki_Vulture — 2025-09-19T23:07:27Z

I know there are various websites which allow you to see your IP address and related info which a website can possibly use to identify you.

The best I’ve found is [https://browserleaks.com/](https://browserleaks.com/)

However, it’s a bit too much. Let’s say I want to see if device/browser A and device/browser B have identical fingerprints, it’d be a super tedious tedious task for me to try every tool on each device and eyeball the results for any differences.

Is there a more efficient way?

(edit: Fingerprinting yourself really seems like an essential skill/tool for people who care about digital privacy. But knowing that your fingerprint is unique means nothing without knowing if it’s similarly unique across sessions within a given browser - which would require being able to perform comparisons.)

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## Post 2 by @anon16234852 — 2025-09-20T04:03:25Z

> **[CreepJS](https://abrahamjuliot.github.io/creepjs/)**

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## Post 3 by @Uzbeki_Vulture — 2025-09-20T13:39:21Z

Looks more condensed than [browserleaks.com](http://browserleaks.com) but still not sure how I’d use it to compare two fingerprints. I want a way to quickly compare my own fingerprints between browsers/devices. Info on a single fingerprint is meaningless when you don’t know the extent of the uniqueness.

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## Post 4 by @anon16234852 — 2025-09-20T18:15:41Z

> **[Am I Unique ?](https://amiunique.org/)**
>
> Check if your browser has a unique fingerprint, how identifiable you are on the Internet

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## Post 5 by @certainty — 2025-09-21T10:14:21Z

Some sites allow exporting results like [Am I Unique?](https://amiunique.org/). If a site doesn’t support exporting results you can just select and copy the whole page (to maintain consistency use Ctrl+A then Ctrl+C) then compare it using visual diff tools like

[Meld](https://gitlab.gnome.org/GNOME/meld)  
[Kompare](https://apps.kde.org/kompare/)  
[Notepad++](https://notepad-plus-plus.org/) with [Compare plugin](https://github.com/pnedev/comparePlus).

Some test sites can be found in [Arkenfox wiki](https://github.com/arkenfox/user.js/wiki#-appendices).

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## Post 6 by @Uzbeki_Vulture — 2025-10-04T16:01:00Z

Is AmIUnique comprehensive? If so, then what’s all the other stuff available on BrowserLeaks? (it has 10 different tests to run, each with so much data!)

There’s no point of comparing fingerprints unless it is comprehensive.

As for running comparisons, I’m not sure how the JSON export from AmIUnique makes it any easier to run a comparison. I tried to compare two such exprts via Meld it made my PC crash (which never happens). I tried Meld with two doc files with Ctrl+A & Ctrl+C BrowserLeaks pastes, but the output made no sense. Just a two notepads full of nonsense characters with lots of highlighting came up.

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## Post 7 by @anon63378630 — 2025-10-04T18:35:38Z

TZP has a json export option too which you can diff

> [@Uzbeki_Vulture](#):
>
> I tried to compare two such exprts via Meld it made my PC crash

pretty-print it first so it isn’t all on one line: `python -m json.tool fp-[timestamp].json > fp-new.json`

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## Post 8 by @certainty — 2025-12-02T15:02:47Z

Try comparing AmIUnique JSON files using JSON diff/compare extensions in Firefox. It’ll work fine.