Idiot Email Tools is a single-purpose toolkit built around one category: email. Rather than being another sprawling directory of unrelated calculators and converters, every tool here exists to help with some part of writing, checking, formatting or analyzing email.
Every tool on this site runs entirely in your browser using client-side JavaScript. When you paste an email address into the validator, a block of headers into the analyzer, or a contact list into the bulk checker, that data is processed locally on your device and is never uploaded to a server (the two exceptions — the MX Record Lookup and the domain check inside the Deliverability Tester — necessarily query a public DNS resolver in real time, since DNS records only exist on the internet's name servers, not in your browser).
We built this because most 'free online tools' sites cram dozens of unrelated categories onto one homepage, diluting quality and trust. By staying focused on a single category, every tool gets real attention: genuine functionality, clear explanations, and a consistent, fast interface.