Compress Images for Reddit — Free & Instant
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's free image optimizer to compress your Reddit images directly in your browser — no account needed, no watermarks, and no ads. Target under 20,000KB per image 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