Email Extractor

An email extractor scans a block of text and pulls out every email address it contains, returning a clean list you can copy. Instead of reading through a chat log, a page of source code, or an exported document by hand, you paste the text and the tool finds each address with a regular expression that matches the local part, the at sign, and the domain. This tool goes further than email alone: the same engine can extract URLs, phone numbers, and IPv4 addresses, so it doubles as a general pattern-extraction utility for messy text.

Here is the email address extractor on a short example. Paste "Contact [email protected] or [email protected]. Reply to [email protected]." and press Extract with Email addresses selected. The result is two addresses, [email protected] and [email protected], with "1 duplicate removed", because the check ignores letter case. The full stops after each address are left out. Tick Lowercase and the first one becomes [email protected], which is the form most mailing tools expect.

The value is in turning unstructured text into a structured list. Support inboxes, meeting notes, scraped pages, log files, and CSV dumps all mix the data you want with the noise around it. Extracting the addresses gives you a de-duplicated, optionally sorted list ready to paste into a mailing tool, a spreadsheet column, or a script. Because duplicates are collapsed and each match is validated against a real pattern, you avoid the copy-paste errors and repeated entries that come from doing this by hand. The email pattern used here is the common practical subset seen in real data rather than the full RFC 5322 grammar, which matches technically valid addresses that never occur.

Everything runs in your browser. The text is scanned locally in JavaScript, so nothing is uploaded to a server, logged, or stored. That matters because the text you paste often contains private data such as customer emails, internal hostnames, or phone numbers, and none of it should leave your machine to be processed. The tool also keeps working offline once the page has loaded, and it stays responsive on large inputs because there is no network round trip.