Compress Images for Email

Email images must be small and universally compatible. Large images trigger spam filters, slow rendering in email clients, and create poor experiences on slow mobile connections. Use ImageSmith to compress your Email images before sending — free, instant, and entirely in your browser. No account needed, no watermarks, no ads. Target under 200KB for best results on Email.

Max size

200 KB

Format

JPEG

Size

600px wide maximum for email body images

  • 1Keep individual email images under 100KB to avoid spam filters
  • 2Total email HTML size (including images) should be under 1MB
  • 3Avoid WebP — Outlook and many email clients do not support it
  • 4Use a CDN to host email images rather than embedding them

Compress by format

Other platforms

Email image compression FAQ