Email Extractor

Q: How does the Email Extractor work in browser memory?

ToolJiffy applies a comprehensive email address regex pattern to the input text, extracts all RFC 5322 compliant email addresses into a deduplicated list, and provides export options — running 100% in browser memory with no server uploads.

Q: What email address formats does the extractor recognize?

Recognizes standard email formats: local-part@domain.tld, including subdomains (user@mail.example.co.uk), plus-addressing (user+tag@gmail.com), and quoted local parts — following RFC 5322 address specification.

Q: Is my text data uploaded to any cloud server?

No. All regex pattern matching and email extraction run 100% locally in your browser using JavaScript. Your text never leaves your device.

Q: Does the Email Extractor remove duplicate email addresses automatically?

Yes. Extracted email addresses are automatically deduplicated using a JavaScript Set, so each unique address appears only once in the output list regardless of how many times it occurs in the source text.

Q: Can I export extracted emails as a CSV or plain list?

Yes. Export as a plain newline-separated list (one email per line), CSV format, or semicolon-separated format for direct import into email client contact groups.

Q: What common sources of text are useful for email extraction?

Useful sources include exported contact lists, email thread digests, website WHOIS records, business directory exports, conference attendee lists, web scraping outputs, and CRM data exports in plain text format.

Q: Can the Email Extractor validate whether extracted addresses are deliverable?

ToolJiffy validates email syntax (format compliance) but cannot verify deliverability (whether a mailbox actively exists) without sending a test message or performing an SMTP MX record lookup.

Free online email extractor — harvesting addresses from your own exports, logs and documents.

100% Private — Runs entirely in browserInstant calculation & resultFree, no sign-up

Your text

Extract email addresses from any text — instant, private, browser-based

Harvesting email addresses from large text blobs — exported contact list dumps, email thread exports, web-scraped business directory data, conference attendee lists, or CRM exports — is a common but tedious task when done manually. Manually scanning thousands of lines looking for @ symbols is error-prone and slow. ToolJiffy Email Extractor uses a comprehensive regex pattern to find every valid email address in any amount of pasted text, deduplicates the results, and delivers a clean exportable list — entirely in your browser.

What email address formats are recognized

ToolJiffy's email regex follows the RFC 5322 Internet Message Format specification, recognizing the full range of valid email address formats encountered in real-world data:

Standard format: [email protected] — the most common form
Subdomains: [email protected] — multi-level TLDs and subdomains
Plus addressing: [email protected] — Gmail, Outlook, and other providers' plus-tagging system
Hyphenated domains: [email protected] — domains with hyphens
New TLDs: [email protected] — all generic TLDs including .io, .ai, .app, .dev, .cloud
Numeric local parts: [email protected] — numerically prefixed local parts

Automatic deduplication and count reporting

In large text dumps, the same email address often appears multiple times — in message headers, quoted reply chains, CC lists, and signature blocks. ToolJiffy automatically deduplicates extracted addresses using a JavaScript Set, ensuring each unique email appears exactly once in the output list. The tool reports both the total occurrence count and the unique count, so you can see how many times the most frequently occurring addresses appear.

Export formats for immediate use

One per line: Plain newline-separated list for direct import into most email tools
Comma-separated: For Gmail and Outlook contact group imports
Semicolon-separated: For Microsoft Outlook bulk recipient fields
CSV with index: Numbered CSV for spreadsheet analysis

Browser-native RFC 5322 regex email extraction engine

ToolJiffy applies the pattern /[a-zA-Z0-9._%+\-]+@[a-zA-Z0-9.\-]+\.[a-zA-Z]{2,}/g globally against the input text using JavaScript's str.match() method. Results are deduplicated using new Set(matches) and sorted alphabetically by domain for organized output. All operations execute synchronously in browser memory with no network requests.

Step-by-step guide to extracting email addresses

Paste your text: Copy your email export, contact list dump, or scraped text into the editor above.
Extract emails: Click Extract Emails — all valid email addresses are instantly isolated and deduplicated.
Export: Choose your export format (one per line, comma-separated, or CSV) and copy or download the result.

Frequently asked questions

How does the Email Extractor work in browser memory?

ToolJiffy applies a comprehensive email regex to the input text, extracts all RFC 5322 compliant addresses into a deduplicated list — running 100% in browser memory with no server uploads.

What email address formats does the extractor recognize?

Recognizes standard format, subdomains, plus-addressing ([email protected]), hyphenated domains, and all TLD variants per RFC 5322.

Is my text data uploaded to any cloud server?

No. All regex matching runs 100% locally in your browser. Your text never leaves your device.

Does the Email Extractor remove duplicate email addresses automatically?

Yes. Extracted emails are deduplicated using a JavaScript Set, so each unique address appears only once regardless of occurrence count in source text.

Can I export extracted emails as a CSV or plain list?

Yes. Export as newline-separated list, comma-separated, semicolon-separated, or numbered CSV format.

What common sources of text are useful for email extraction?

Exported contact lists, email thread digests, WHOIS records, business directory exports, conference attendee lists, and CRM data exports.

Can the Email Extractor validate whether extracted addresses are deliverable?

ToolJiffy validates email syntax but cannot verify deliverability without performing an SMTP MX record lookup.

Is ToolJiffy Email Extractor free without limits?

Yes. ToolJiffy is 100% free with unlimited text processing, zero account registration, and zero server uploads.

Related text extraction tools

Extract URLs with URL Extractor, remove duplicate lines with Remove Duplicate Lines, find and replace with Find and Replace, or encrypt extracted data with Text Encryptor.