This extractor scans pasted text or HTML and returns every email address it contains, de-duplicated and listed one per line. Detection follows the practical shape of a real address — a local part, an @ sign and a domain with a valid top-level extension — so it survives addresses buried in a paragraph, wrapped in mailto: links, or separated by semicolons in a mail client's header. Duplicates are collapsed automatically, which matters when you are pulling recipients out of a long forwarded thread where the same person appears twenty times. Everything runs in your browser: contact data is never uploaded, which is the point when you are handling personal information under privacy rules such as GDPR or India's DPDP Act.
Free, fast, and runs entirely in your browser — no signup, no upload to a server.