Free Email Tools
12 free tools for cleaning lists, checking addresses and setting up email authentication. Most run in your browser; the DNS checks read public DNS. No account needed.
Extract and clean
- Email Extractor
Pull email addresses out of pasted text or a .txt/.csv file.
- Email Deduplicator
Remove duplicate addresses with opt-in rules for case, plus tags and Gmail dots.
Check addresses
- Free Email Provider Checker
See whether an address uses a free provider, a disposable domain or a role account.
- Phone Number Validator
Check phone number format and numbering plan by country.
DNS and authentication
- SPF Record Checker
Read and analyze a domain’s SPF record, including includes and redirects.
- SPF Record Generator
Build an SPF record from your sending IPs and services.
- DKIM Record Checker
Check the DKIM public key published for a selector.
- DMARC Record Checker
Read a domain’s DMARC policy and report settings.
- DMARC Record Generator
Create a DMARC record with the policy and reports you choose.
- MX Lookup
List a domain’s mail servers in priority order.
Analyze and measure
- Email Header Analyzer
Trace the delivery path and read authentication results from raw headers.
- Email Bounce Rate Calculator
Calculate hard, soft and total bounce rates.
These tools find and format addresses; they do not confirm a mailbox exists. To check deliverability use the email verifier or list cleaning. A Chrome extension for extracting addresses is in development.