Automizy Subject Line Tester Is Gone — Here's What to Use Instead

Automizy's free subject line tester is dead (404). Looking for an alternative? EmailSubjectScore Pro is free and scores inside Gmail as you type.

What happened to Automizy?

Automizy was an email automation platform with a popular free subject line tester. Then Cognism acquired them. The subject line tool at automizy.com/subject-line-tester now returns a 404. Gone. No redirect, no replacement, just… dead page.

If you landed here searching for “Automizy subject line tester” or “Automizy alternative” — yeah, it’s not coming back. Cognism absorbed the team and apparently didn’t care about keeping the free tools alive.

What Automizy used to do vs what you can get now

	Automizy (dead)	EmailSubjectScore Pro
Status	❌ Shut down (404)	✅ Active, free on Chrome Web Store
Where it lived	automizy.com (web)	Inside your Gmail compose window
Scoring	AI-predicted open rate (single number)	Spam risk + Clarity + Urgency (3 dimensions)
AI rewrite suggestions	❌ Nope	✅ One-click rewrites
Signup required	✅ Email required	❌ No signup, no nothing
Real-time	❌ Paste and click	✅ Scores as you type

Why EmailSubjectScore Pro is a better replacement anyway

Even when Automizy was alive, it had problems. You’d get one number — “predicted open rate: 32%” — and no explanation. Cool, but… what do you do with that? Is 32% good? Bad? What’s dragging it down?

EmailSubjectScore Pro gives you three separate scores. Spam risk. Clarity. Urgency. You know exactly what’s broken and which part to fix. And if you don’t want to fix it yourself, hit “Suggest rewrite” and the AI does it for you.

Automizy never had rewrites. It was score-only. So honestly, even before it died, it was solving half the problem.

Other Automizy alternatives (if you don’t use Gmail)

If Gmail isn’t your thing and you want a web-based tester, these still work:

Sendcheckit — free, no signup, simple score
CoSchedule Headline Analyzer — free with email signup, detailed word analysis

But if you’re a Gmail user — just install EmailSubjectScore Pro. It’s free, it’s inside your compose window, and it doesn’t ask for your email address to work.

Try it free

Install EmailSubjectScore Pro from the Chrome Web Store →

No signup. 50 scores + rewrites/month.

Full disclosure: this page is by the team behind EmailSubjectScore Pro. Automizy was a solid tool before the acquisition — RIP. We’re not dancing on their grave, just trying to help people who landed here looking for something that actually works.