Email Address Extractor & Verifier

Pull addresses out of any text or CSV, strip labels stuck to the front, split them by provider, and flag the ones that will bounce.

Paste or drop your text

Choose a file or drag one here — .txt, .csv, .json, .html or just paste below

Text to search

Options

Remove duplicates Treat Gmail dots and +tags as one mailbox Check mail servers (MX) Strip +tags from the output

Strip these labels from the front of an address

Comma separated. Exports sometimes weld a column label onto the value it was labelling, so adresselelebernierbike@hotmail.com is really lelebernierbike@hotmail.com. Only the front of the local part is touched, and only when a usable name is left behind — adresse@shop.com stays as it is. Empty the box to turn this off.

MX lookups send only the domain — acme.com, never jane@acme.com — to Cloudflare or Google DNS, and answers are cached for a week. Untick it to stay entirely offline.

What it reads

Plain lists, CSV columns, JSON exports and saved page source all work. Paste a page’s HTML and it will find mailto: links, Cloudflare-obscured addresses, and ones written as name [at] shop [dot] com.

Tracking noise — Sentry keys, CDN tokens — is filtered out, so it never shows up as a fake contact address.

What “invalid” really means

Malformed, a domain that does not exist, a domain with no mail server, a disposable inbox, or a filename that only looks like an address.

Offline checks cannot tell you whether a mailbox exists. asdfgh@gmail.com is well formed on a live domain. That is what the paid verification button is for — it is the only check that actually asks the mail server.

Why risky is its own bucket

Losing a real customer costs more than keeping a dead address, so anything uncertain lands in risky rather than being binned — legacy Gmail accounts that break Google’s current username rules, role inboxes, likely typos, catch-all domains.

Nothing is uploaded

Extraction, de-duplication and every offline check happen in this browser tab. Your list is never transmitted.

The two exceptions are opt-in and labelled: MX lookups send the domain part only, and paid verification sends the addresses you explicitly confirm.

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Email Address Extractor & Verifier

Paste or drop your text

CSV loaded

Options

Summary

By provider

By deliverability

Why they were flagged

Business domains

Related tools

Personal vs Business Email Separator

Duplicate Remover

List Splitter

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