What every Browser knows about you is described as 'This is a demonstration of all the data your browser knows about you. All this data can be accessed by any website without asking you for any permission' and is a Privacy Tool in the security & privacy category. There are more than 10 alternatives to What every Browser knows about you, not only websites but also apps for Self-Hosted. The best What every Browser knows about you alternative is PrivacyTests.org, which is both free and Open Source. Other great sites and apps similar to What every Browser knows about you are Cover Your Tracks, BrowserLeaks.com, Am I Unique? and Device Info.