Compress Images for Mailchimp — Keep Quality, Beat the Limit
Mailchimp email campaigns require properly sized, email-safe images. Optimized images improve email deliverability, load faster in all email clients, and increase engagement rates. Use ImageSmith to compress your Mailchimp images before sending — free, instant, and entirely in your browser. No account needed, no watermarks, no ads. Target under 10,240KB for best results on Mailchimp.
Max File Size
10,240 KB
Recommended Format
JPEG
Dimensions
600px wide for email body, 1200×600 for header banners
Mailchimp Compression Tips
- 1.Email content area is 600px wide — design at 600px or 1200px (2× Retina)
- 2.Keep individual images under 200KB for fast email loading
- 3.Avoid WebP — Outlook does not support it in emails
- 4.Test emails across clients (Gmail, Outlook, Apple Mail) before sending