Subject Line Analyzer
Score and fix your subject lines, with better alternatives.
Result
This Email Subject Line Analyzer evaluates your subject lines — effectiveness and scannability scores, sentiment, spam triggers, all-caps and emoji use — then explains the issues and offers 3–5 improved alternatives. Free, no signup.
Frequently Asked Questions
What does it analyze?
Effectiveness and scannability (1–10), sentiment, spam-trigger phrases, all-caps words and emoji use — with a clear improvement report.
Does it suggest better ones?
Yes — it provides 3–5 stronger alternatives based on the analysis.
Can I check several at once?
Yes — paste multiple subject lines and it will assess them.
Is it free?
Yes, free with no signup.