Email Tools
Free email tools — signature generators, validators, subject-line testers, header analyzers, mailto link builders.
All Email Tools (8)
Explore our collection of free email tools
Disposable Email Checker
Detect throwaway / temporary email domains — protect signups from spam.
Use ToolEmail Header Analyzer
Paste raw email headers — see hops, SPF/DKIM/DMARC, delivery time.
Use ToolEmail Signature Generator
Build a polished HTML email signature with your logo, contact details, and social links — copy the code or download it in seconds.
Build My SignatureEmail Subject Line Tester
Score your email subject line in real time — length, spam triggers, emoji, ALL CAPS, power words, and an open-rate hint.
Test Subject LineEmail Template Generator
Build ready-to-send cold outreach, follow-up, newsletter, welcome, thank-you, and meeting emails in plain text or HTML.
Generate TemplateEmail Validator
Validate email address format (RFC 5322), catch common domain typos, and clean a pasted list — all in your browser.
Validate EmailsMailto Link Generator
Generate mailto: links with subject, body, CC, BCC pre-filled.
Use ToolSMTP Tester
Test SMTP server connectivity, authentication, and TLS support from the browser.
Use ToolSuggest a Tool
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