Mobile Email Preview Tool
Over 60% of emails are opened on mobile. Use this simulator to ensure your fonts are readable, your buttons are "tappable," and your subject lines don't get cut off.
📖 How to Optimize for Mobile
Shorten Subjects
Mobile screens truncate subject lines quickly. Keep your main value proposition within the first 30-35 characters.
Check Font Sizes
Body text should be at least 14px-16px to be readable on mobile without zooming. Use our preview to check clarity.
Touch Targets
Ensure your buttons are at least 44x44 pixels. This makes them easy to tap with a thumb without accidentally hitting other links.
Single Column
Multi-column layouts often break on mobile. Use a single-column layout for the most consistent mobile experience.
💡 The Importance of Mobile-First Email
A "broken" email on mobile often leads to an immediate unsubscribe. Since most users check their email on the go, your design must adapt to narrow viewports instantly.
- Responsive vs. Fluid: This tool helps you test if your media queries (
@media) are firing correctly to stack elements vertically. - Preheader Importance: On mobile, the preheader text is highly visible under the subject line. Make sure it provides a compelling "second hook."
- Loading Speed: Large images can slow down mobile rendering. Use the preview to visualize if your image-to-text ratio is balanced.
- Accessibility: High contrast and clear hierarchy are even more vital on small screens where glare can be an issue.