Free Email Subject Line Scorer
Your subject line determines whether your email gets opened or ignored. Paste any subject line and get an instant score based on length optimization, power words, personalization, emoji usage, and spam trigger detection.
Step 1
Paste your email subject line.
Step 2
Get a score out of 100 with a detailed breakdown.
Step 3
Apply suggestions to boost your open rates.
Score Your Subject Line
Paste your email subject line below and get an instant score with actionable feedback.
Frequently Asked Questions
What makes a good email subject line?
A good subject line is 6-10 words, creates curiosity or urgency, avoids spam triggers, and clearly communicates value. Personalization (like using the recipient's name) can increase open rates by up to 26%.
Should I use emojis in subject lines?
One well-placed emoji can increase open rates, but overusing them looks spammy. Stick to one emoji maximum and make sure it adds meaning rather than decoration.
How long should my subject line be?
Aim for 30-60 characters. Most mobile devices cut off subject lines after about 35-40 characters, so front-load the most important information.
Made by a Human. Not a faceless company.
Built by Shashank — brand strategist, founder, and the person behind Brandeey. @istupidpreneur