EmailHookGen - Cold Email Subject Line Optimizer
2
Manual
5s
Sign Up
Sign up for free to try this agent.
What This Agent Does
EmailHookGen analyzes your cold email and generates 10 high-performing subject line variations with open rate scores (0-100) and psychology breakdowns. Know which subject line will get opened before you hit send.
The Problem
47% of recipients decide to open emails based on subject line alone. Most people spend 2 minutes writing subject lines that kill their email performance.
What You Get
- 10 diverse subject line variations using proven frameworks (curiosity, social proof, personalization, urgency, etc.)
- Open rate score (0-100) for each variation based on audience relevance, clarity, emotional triggers, and spam safety
- Psychology breakdown explaining why each works and when to use it
- A/B testing strategy with top combinations to test
- Spam trigger warnings to avoid deliverability issues
Perfect For
- SDRs doing cold outreach
- Founders reaching investors/customers
- Recruiters contacting candidates
- Marketing teams running email campaigns
- Anyone frustrated with low open rates
How It Works
1. Paste your email body
2. Specify target audience
3. Select your email goal
4. Get 10 scored subject lines in 30-35 seconds
Why It's Different
Most tools generate generic subject lines. EmailHookGen analyzes YOUR specific email, customizes to YOUR audience, scores each variation with reasoning, and ranks them best to worst.
Real Impact
Subject line optimization can increase open rates by 20-50%, get 3-5x more meetings booked, and save hours of A/B testing.
Pro Tips
Run this for every campaign, test top 3 subject lines, personalize with {{FirstName}} tokens, and keep subject lines under 50 characters for mobile.