Compress Images for Reddit
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. Target under 20,000KB for best results on Reddit.
Max size
20,000 KB
Format
JPEG
Size
1200×628 (link previews), 1080×1080 (image posts)
- 1Reddit thumbnails display at 140×140 — ensure key content is centered
- 2Use 1200×628 for link preview images
- 3PNG for screenshots and graphics, JPEG for photographs
- 4Reddit GIFs auto-convert to MP4 for better performance
Compress by format
Other platforms
Reddit image compression FAQ
Reddit supports image uploads up to 20MB. For best performance, keep image posts under 5MB. Use 1200×628 pixels for link share images to fill the preview card.