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Free tools

Free email tools

Small, focused utilities that help you write, check and send better email — free, no account needed.

Email Spam Checker

Paste your subject line and body to get a 0–100 spam score with specific fixes before you send.

Open tool

Coming soon

Email Subject Line Checker

Coming soon

Score subject lines for length, clarity and open rate.

Email Signature Generator

Coming soon

Build a clean, professional signature for Gmail.

SPF Checker

Coming soon

Validate the SPF record for your sending domain.

DKIM Checker

Coming soon

Confirm your DKIM signature is published correctly.

DMARC Checker

Coming soon

Review your DMARC policy and alignment.

Email Header Analyzer

Coming soon

Trace delivery hops and authentication results.

Google Workspace Marketplace

Ready to send better emails?

Install Mailvern for Google Sheets to send personalized emails, track opens, and automate campaigns.

Install MailvernView demo

3-day trial on paid plans · Works with Gmail and Google Workspace