File size is a common pain point when it comes to GIFs in emails. A large GIF can slow down loading, increase bounce rates, and even get flagged by spam filters - especially on mobile or in low-bandwidth situations.
As a general rule, try to
keep your GIFs under 1MB, and aim for
500KB or less for faster performance across devices. Here are a few ways to shrink the size without killing the quality:
- Trim unnecessary frames - Only show what’s essential in the animation.
- Limit the loop duration - A quick 2–3 second loop often works better than a drawn-out animation.
- Reduce colors or use dithering - Fewer colors = smaller file size.
- Resize dimensions - You rarely need a 1080p GIF in an email. Stick to what fits your layout.
Tools like
EZGIF,
Squoosh,
Photoshop, or
Adobe Media Encoder let you optimize GIFs manually or with presets. You can even convert video clips into email-ready GIFs using compression presets. And finally - always test your emails in preview tools like
Litmus or
Email on Acid to see how your GIF performs across different clients and screen sizes.
In the first example below, you can clearly see the eye path our designer wants you to follow, with the descending BEST SELLERS text below the copy. The GIF is enticing you to scroll down as it leads you to the call to action (CTA).