All categories
6 tools
Security
Encrypt a file, hash it, or see what a public page exposes.
Encrypt a fileChoose files or a folder, set a password, and download the encrypted files plus a key that must stay in the same folder.
SHA-256 checksumHash a local file so you can compare it to a published checksum.
Website security checkLook up a public site’s Mozilla Observatory grade for security headers. It is not a trust or scam score.
What's my IPShow the public IP address seen for this browser and a city-level location guess.
Is my DNS misconfigured?Compare Cloudflare and Google public DNS for a name you type. Your computer's resolver is not visible to a web page.
What's my browser fingerprint?List the screen size, fonts, browser, and device details this page can already see. Nothing is uploaded.