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Free tools
Small, single-purpose checkers for the email problems that are easier to answer with a tool than with a paragraph. Every one runs entirely in your browser.
Nothing you type is sent anywhere. These tools contain no network requests at all. Nothing is logged, nothing is stored, and there is no sign-up. You can confirm it by opening your browser developer tools and watching the network tab while you use them.
2 tools
All tools
Built because the answer was genuinely hard to give in prose, not to have tools.
Phishing
Sign-in URL checker
Paste a sign-in address and find out whether it genuinely belongs to Microsoft, Google or Yahoo. Catches the subdomain trick, lookalike characters, punycode and raw IP addresses.
Updated Aug 16, 2026Open the tool
Account safety
Account recovery checker
Could you actually get back into your mailbox if the password stopped working? Scores your recovery methods on independence rather than count, and tells you what to fix first.
Updated Aug 27, 2026Open the tool