§ INPUT
0 characters · processed entirely in your browser
Your text never leaves your browser. Zero uploads.
§ WHY IT MATTERS
Every raw extract is a dirty list.
10–30%
of raw extracts are invalid, disposable, or dead
12–18%
duplicate rate removed by dedupe on typical lists
20%+
deliverability lift after cleaning + verifying
§ HOW IT WORKS
From messy text to a clean list in four steps.
STEP 01
Paste or drop a file
Anything with emails — signatures, scraped pages, exports, JSON logs, Slack archives. .txt, .csv, .html up to 5 MB.
STEP 02
Extract and detect
A pragmatic RFC 5322 regex finds every address, including plus-addressing and subdomains. Runs in your browser.
STEP 03
Clean and deduplicate
Dedupe, strip invalid format, filter by domain, sort A–Z. All instant, all client-side — no server round-trip.
STEP 04
Export or verify
Copy, download .txt/.csv, or push the cleaned list straight into BounceCheck bulk verification.
§ COMMON SOURCES
Where emails hide — and why a regex beats copy-paste.
Any block of text with addresses in it is fair game. The extractor uses a pragmatic RFC 5322 regex that matches real-world addresses including plus-addressing ([email protected]), subdomains, and country-code TLDs.
Email signatures
Pull contacts out of bulk inbox exports or signature footers.
Scraped pages
HTML source of contact pages, directories, press releases.
CSV exports
CRM dumps, LinkedIn exports, webinar attendee lists.
Source code & logs
JSON blobs, server logs, HTML comments, inline scripts.
Chat archives
Slack exports, Discord logs, support ticket threads.
DB exports
SQL dumps, NDJSON, any text field with email buried inside.
§ VALIDATE THE LIST
Extracted is not the same as deliverable.
Typos, abandoned mailboxes, disposable domains, role accounts that bounce — every raw list carries them. BounceCheck runs the full SMTP pipeline on every address and labels it Valid, Risky, or Invalid before you send.
Syntax check
RFC-compliant format
DNS + MX record
Domain actually exists
SMTP handshake
Mailbox accepts mail
Disposable detection
Catches temp-mail domains
Role-account flag
info@, support@, etc.
§ FEATURES
Built to extract, clean, and hand off.
100% client-side
Regex + DOMParser run in your browser. Nothing uploaded.
One-click export
Copy, .txt, or .csv. Ready to paste into any tool.
Sort & filter
Alpha, original, by domain. Search the whole list instantly.
Smart dedupe
Case-insensitive dedupe on by default. Toggle off anytime.
Strict format check
'Valid only' drops anything that fails RFC-compliant matching.
Direct to verify
Hand the cleaned list to bulk verification without re-uploading.
§ THE PRIMER
What is an email extractor, and when do you need one?
Email Extractor is a web-based software that helps you extract emails from the bulk of text. And it's completely free to use with some fair usage limits.
An email extractor pulls email addresses out of unstructured text. Sales ops teams run it on LinkedIn exports and outreach threads. Marketers run it on scraped landing pages and webinar attendee lists. Developers run it on log files, HTML dumps, and database exports where emails are buried in JSON fields or HTML comments.
Copy-paste misses addresses split across lines, hidden in mailto: links, or wrapped in HTML tags. A well-tuned regex catches all of them in one pass — plus the long tail of valid-but-weird addresses like [email protected].
Once extracted, lists usually contain typos, disposable addresses, and dead mailboxes. That's where verification comes in — hit Verify emails and BounceCheck runs the full SMTP pipeline on every address, separating Valid, Risky, and Invalid so you only send to people who will actually receive it.
§ FAQ
Email extractor FAQ
Everything you need to know about pulling emails out of text, cleaning the list, and handing it off to verification.
Still have questions? Contact us§ READY TO VERIFY?
Clean the list, then check every address delivers.
Free plan: 50 verifications a month. No card required.
Start verifying free