Compress Images for Reddit — Keep Quality, Beat the Limit

Reddit image posts display in feed thumbnails and full-size previews. Optimized images load faster and look sharper across Reddit's desktop site, mobile app, and old.reddit. Use ImageSmith to compress your Reddit images before sending — free, instant, and entirely in your browser. No account needed, no watermarks, no ads. Target under 20,000KB for best results on Reddit.

Max File Size

20,000 KB

Recommended Format

JPEG

Dimensions

1200×628 (link previews), 1080×1080 (image posts)

Reddit Compression Tips

  • 1.Reddit thumbnails display at 140×140 — ensure key content is centered
  • 2.Use 1200×628 for link preview images
  • 3.PNG for screenshots and graphics, JPEG for photographs
  • 4.Reddit GIFs auto-convert to MP4 for better performance

Compress by Format

Other Platform Optimizers

Reddit Image Optimization FAQ