Email Subject Previewer
Check how your email subject and preheader appear on mobile and desktop devices to prevent truncation.
- Front-load keywords: Put the most important words at the beginning.
- Emojis: Use sparingly to boost open rates but save space.
- Preheader: Use it to complement the subject line context.
1. Mobile Notification
2. Mobile App List
Inbox
PriceCalc Team
10:453. Gmail Desktop
Guide & Insights
Optimize Your Open Rates
The first 40 characters determine if your email gets opened or archived. Our Email Subject & Preheader Previewer shows exactly how your marketing emails appear on iPhone, Android, Gmail, and Outlook.
Front-Load Keywords
Put your most compelling words in the first 40 characters. This ensures your value proposition is seen even on the smallest mobile screens before truncation occurs.
Preheader Power
Don't waste the preview text! Use the "second subject line" to build curiosity or add context that didn't fit in the main subject line.
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