50 Subject Line Formulas That Convert
Proven templates for every email type: welcome, promo, cart, win-back.
- 50 fill-in-the-blank subject line formulas
- Organized by email type
- Works for any product or niche
- A/B testing framework included
- Delivery
- Instant download
What happens after you order
Two steps. That is the whole process.
- 1
Enter your email
No credit card, no trial, nothing to cancel.
- 2
The PDF lands in your inbox
Delivered instantly as an attachment, check spam or Promotions if it is not there in a minute.
What It Is
The subject line is the single biggest lever on open rate, and it's also the field marketers stare at longest with the least to show for it. This guide removes the blank-page problem with 50 proven formulas, organized by email type.
Welcome and onboarding, promotional and urgency, cart and browse recovery, social proof openers, re-engagement and win-back, and seasonal hooks are all covered. Each formula comes with a real example so you can see exactly how to adapt it, not just a fill-in-the-blank template.
Whether you're writing your next campaign or building out a flow, this is the fastest way to generate several strong subject line options to A/B test instead of guessing at one.
Who It's For
- You spend too long staring at a blank subject line field before every send
- You want multiple strong options to A/B test, not just your first idea
- You're writing subject lines for a specific email type (cart, win-back, seasonal) and want proven starting points
- You manage campaigns and flows and want one reference for both
Probably not for you if
- You want a documented A/B testing process to actually validate which formula wins, pair this with the A/B Testing Handbook for Email
- You want the full email written for you, not just the subject line. See the Email Copywriting Swipe File for body copy and CTAs
What's Included
How It Works
Enter your email
No card, no call required, just your email address.
Get instant delivery
The 50-formula PDF arrives in your inbox within seconds.
Pick a formula and adapt it
Find the formula that matches your email type, swap in your brand voice and offer, and you have a subject line ready to send.
Typical delivery: Instant download
What We Need From You to Get Started
Have these ready and we can kick off immediately. No back-and-forth delays.
- Just your email address: that's it
- No credit card required
- Your offer or hook for the specific email you're writing
Frequently Asked Questions
Yes, 50 Subject Line Formulas That Convert is completely free with no credit card required. Enter your email and it arrives instantly.
A PDF, emailed instantly, organized into welcome and onboarding formulas, promotional and urgency formulas, cart and browse recovery, social proof openers, re-engagement and win-back, and seasonal hooks. Each with a real example.
No, subject lines work the same regardless of platform. These formulas apply whether you are sending from Klaviyo, Mailchimp, or anything else.
Pick 2-3 formulas that fit your email's goal and A/B test them. The free A/B Testing Handbook for Email covers the exact methodology for running a valid subject line test.
This guide is subject lines only. For openers, CTAs, P.S. lines, and closers to write the rest of the email, pair it with the free Email Copywriting Swipe File.
Related Services
Related Guides
A/B Testing Email Subject Lines: A Systematic Approach to Higher Open Rates
How to run subject line A/B tests that produce statistically valid results. What to test, sample size requirements, how to interpret results.
Email Subject Lines That Get Opened: The Complete Copywriting Guide
Everything you need to write email subject lines that increase open rates. Psychological triggers, length, personalisation, testing frameworks.
27 Email Subject Line Formulas That Get 40%+ Open Rates
Proven email subject line formulas that consistently drive 40%+ open rates for e-commerce brands. Copy-paste templates with real performance data.
WHO BUILDS THIS
Delivered by Ravinderpal Singh's team
Ravinder founded Excelohunt. For 7+ years he has worked on one thing: making email the channel that earns the most for online stores. He wrote Customer Retention Strategies. His Klaviyo Partner team builds every order placed here.
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