Useful Email & Mailto Tools starting points

Jump into a common task, then use the full directory below for more specialized tools.

10 tools

Email & Mailto Tools

Free browser-based email & mailto tools with instant results and no account required.

Validate bare email addresses or display-name mailbox forms locally without pretending to verify mailbox existence.

Extract common valid email address forms from pasted text locally.

Clean a pasted email list by separating structurally valid and invalid addresses and optionally deduplicating and sorting the valid list.

Remove duplicate email addresses with explicit local-part and domain case-handling rules.

Extract normalized domains from a list of structurally valid email addresses.

Count how many valid addresses belong to each email domain in a pasted list.

Split email addresses into local part, entered domain, and normalized ASCII domain columns.

Sort a pasted email list by full address, local part, or normalized domain.

Build a percent-encoded mailto URI from To, Cc, Bcc, subject, and body fields.

Parse a mailto URI into recipients, subject, body, and other query headers locally.