Your email marketing success depends on how many people actually open your emails. A catchy subject line is necessary to make your subscribers open your emails.

HubSpot contributor Meg Prater has shared 12 email subject line testing tools to help marketers improve their email open rates. She has covered the tools such as Test Subject, Email Subject Line Grader, Spam Check, Touchstone and more.

Prater says, “Do you struggle to get prospects to open your emails? For some people, writing clever, witty, clickable subject lines can be a challenge — and that’s where subject line tester tools can come in.

Check for spam triggers, get suggestions for making your subject lines more emotive, and get an overall grade on how clickable your emails are.

In this post, we’ll run through tools to improve you email subject lines for better clickability and deliverability to get more replies from more prospects”.

12 Subject Line Tester Tools to Boost Your Email Open Rate

HubSpot