Email Extractor

Got a long email thread, a spreadsheet export or a web page with addresses scattered through it? Paste the text or open the file and the extractor finds every email address, removes duplicates, and lets you filter by domain, drop no-reply addresses and choose the separator. Copy the clean list or download it as a CSV — nothing leaves your device.

What the extractor does

It scans any text for patterns that look like email addresses — a local part, an @ sign and a domain with a dot — and lists every match. You can paste text directly or open a file: plain text, CSV exports from spreadsheets or CRMs, saved HTML pages, contact cards (VCF) or saved email messages (EML). The results can be cleaned up in one pass: converted to lower case, deduplicated, sorted, filtered by domain and joined with the separator your email program or spreadsheet expects.

How to use it

1. Paste text into the box, or choose a file to load it.
2. Choose options: lower-case, remove duplicates, sort, and drop no-reply addresses.
3. Filter by domain if you only want addresses from, for example, your company domain, or exclude domains you don’t need.
4. Pick the separator: new lines for spreadsheets, commas for most email programs, semicolons for Outlook.
5. Copy the list or download a CSV with each address and its domain.

Common uses

Responsible use

Only collect and use email addresses you have a right to use. Sending marketing email to people who have not agreed to receive it breaks anti-spam and privacy laws in many places — including CAN-SPAM in the United States, CASL in Canada, and GDPR and PECR in the UK and EU — and damages your sender reputation. Do not scrape addresses from other people’s websites for bulk mailing. The tool is intended for organising contacts you already hold, such as colleagues, customers who contacted you, or attendees who registered with you.

Why some addresses are missed or included

• Addresses hidden in images or behind JavaScript on a website are not in the text, so they can’t be found.
• Obfuscated addresses such as “name [at] domain [dot] com” are only found when you tick the option.
• Strings that look like addresses but aren’t — such as image file names like logo@2x.png — can occasionally match; review the list.
• Very unusual but valid addresses (quoted local parts, IP-address domains) are rare and not matched.
• Encoded addresses in HTML (for example using character entities) may need to be decoded first by opening the page and copying its text.

Worked example

The sample text contains six addresses, one of them twice in different capitals and one written as “sales [at] widgets [dot] io”. With lower-case and duplicate removal on, the extractor lists five unique addresses from three domains. Ticking “Find name [at] domain [dot] com” adds sales@widgets.io, and ticking “Drop no-reply addresses” removes noreply@mailer.example.org. Choosing the semicolon separator gives a list ready to paste into an Outlook To field.

Separators for popular programs

Extracting from a website you manage

To audit the addresses published on your own website, open the page, select all text (Ctrl+A or Cmd+A), copy and paste it here. For a whole site, save pages as HTML and open them one at a time. Addresses inside images or contact forms won’t appear. This is a quick way to find outdated staff addresses before they attract spam or confuse customers.

Duplicates and capital letters

The part of an address after the @ is never case-sensitive, and in practice almost every email provider treats the part before it as case-insensitive too, so Tom@Example.com and tom@example.com reach the same inbox. That is why the extractor removes duplicates without regard to case and offers to lower-case everything. Some providers also ignore dots or “+tags” in the local part (for example, gmail treats j.smith and jsmith as the same), but the tool keeps those as separate addresses because other providers do not.

Cleaning your list further

Extraction finds addresses; it can’t tell whether they still work. Before a large mailing, remove role addresses that shouldn’t receive newsletters, check for obvious typos (gmial.com, hotmial.com), and use your email platform’s bounce handling. Keep a record of how and when each person agreed to hear from you.

Privacy

The extractor runs entirely in your browser. Text and files you open are not uploaded, stored or logged; closing the page clears them.