Extract Email Addresses
Paste any text and pull out every email address — deduplicated, and optionally grouped by domain. Runs in your browser; nothing is uploaded.
About this tool
Extract Email Addresses scans a block of text and pulls out every email address it finds — deduplicated (case-insensitively) and listed in the order they first appear. Tick Group by domain to also see the addresses bucketed by their domain, which is handy for spotting which organizations are represented.
Everything runs locally in your browser via WebAssembly — your text is never uploaded, so it's safe for pasting contact lists, email threads, or exports.
Handy for
- Building a recipient list from a pasted email thread or document.
- De-duplicating a messy list of addresses.
- Seeing, at a glance, how many addresses belong to each domain.
Notes
- Matching is pragmatic (local-part
@domain with a real TLD); it won't invent addresses from stray@symbols. - Addresses are lowercased for de-duplication.
FAQ
Are [email protected] and [email protected] counted as two addresses?
No. Every match is lowercased before de-duplication, so they collapse into a
single entry ([email protected]). The output list keeps the order in which each
unique address first appeared in your text.
Does it handle plus-addressing and subdomains?
Yes. Addresses like [email protected] are matched in full — the
local part may contain letters, digits and . _ % + -, and the domain can have
any number of subdomain labels as long as it ends in a real TLD of two or more
letters.
What won't be picked up as an email address?
Fragments without both sides of the @ — things like @handle, foo@, or a
bare @bar.com — are ignored, as is anything whose domain lacks a valid TLD.
If nothing in the text qualifies, the tool reports "No email addresses found."
How are results ordered when I group by domain?
With Group by domain on, domains are listed alphabetically with a per-domain count, and each domain's addresses keep their first-seen order. Without grouping, you get one flat list in first-seen order.
Developer & Automation Access
Run it from the terminal
Same engine as this page, headless — via the gizza CLI:
gizza tool extract-email-addresses "Paste text containing email addresses…"New to the CLI? Get gizza →
Open it by URL
Pre-fill and auto-run this tool with query parameters — the names match the API/CLI:
https://gizza.ai/tools/extract-email-addresses/?text=Paste%20text%20containing%20email%20addresses%E2%80%A6&group_by_domain=trueMachine-readable descriptor: tool.json — title + parameters JSON Schema for agents.