Free tools
Security tools
Eight things we reach for often enough that they are worth handing over. Six do all their work inside your browser and never touch the network. The other two are honest exceptions, and each says so on its own page.
Nothing you type, paste or drop on these pages is uploaded, stored or logged, with two exceptions that each explain themselves before you use them. The breached-password checker sends the first five characters of your password's hash - never the password - to Have I Been Pwned. The connection tool reads the request your browser already made to us. Nothing else leaves the page.
Phishing URL Inspector
See where a link really goes before you click it.
OpenEmail Header Analyser
Read the delivery trail and authentication verdicts in a suspicious message.
OpenSPF / DMARC Explainer
Understand what your published mail policy actually says.
OpenSecurity Header Analyser
Check which protective headers a response sends, and which it forgets.
OpenPassphrase Generator
Strong passphrases and passwords, generated in your browser.
OpenFile & Text Hash Verifier
Check a download against its published digest without uploading it.
OpenBreached Password Checker
Find out whether a password already appears in known breach corpora.
OpenWhat Your Connection Reveals
What any site learns about you the moment you open it - from your address, your network and your browser.
Open
