Reddit is content-first—the image supports the title, not the other way around. 1200×628 is the dependable post size, though 4:5 and 1:1 gain height in the mobile feed. Community banners crop hard on mobile, so keep art centered. Avoid anything that reads as an ad; native, unpolished visuals outperform branded creative.
Best Practices
Use 1200×628 (1.91:1) for link and image posts; 4:5 or 1:1 for mobile height.
Keep community banner art in the center—mobile crops both sides hard.
Design icons and avatars for a circular crop at 256×256.
Export PNG for screenshots and text, JPEG for photography.
Let the title carry the message; avoid heavy on-image branding.
Pro Tips
Screenshots and diagrams outperform polished graphics in most subreddits.
Check each subreddit's rules—many restrict image posts or link formats.
Galleries (up to 20 images) work well for step-by-step or before/after posts.
Keep video under 30 seconds; Reddit autoplays muted in the feed.
Test legibility on dark mode—Reddit's default skews dark for most users.
Visual Previews
Post Image (Recommended)
1.91:1 · Image
1200 x 628 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Post Image (Square)
1:1 · Image/Video
1080 x 1080 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Post Image (Portrait)
4:5 · Image/Video
1080 x 1350 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Vertical Video
9:16 · Video
1080 x 1920 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Horizontal Video
16:9 · Video
1920 x 1080 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Profile Avatar
1:1 · Image
26px
26px
26px
26px
256 x 256 px
Safe/overlay areas (from spec)
Preview shows relative aspect only. Export at the listed resolution for best quality.
Profile Banner
3:1 · Image
1200 x 400 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Community Icon
1:1 · Image (max 500 KB)
26px
26px
26px
26px
256 x 256 px
Safe/overlay areas (from spec)
Preview shows relative aspect only. Export at the listed resolution for best quality.
Community Banner (Desktop)
5:1 · Image (max 5 MB)
480px
480px
1920 x 384 px
Safe/overlay areas (from spec)
Preview shows relative aspect only. Export at the listed resolution for best quality.
Community Banner (Mobile)
10:3 · Image (max 5 MB)
1600 x 480 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Conversation Ad Thumbnail
4:3 · JPG/PNG (max 500 KB)
400 x 300 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Sizes
Tap a size to see its safe zones.
Post Image (Recommended)
1200×628 · 1.91:1 · Image
Post Image (Recommended)
1.91:1 · Image
1200 x 628 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Post Image (Square)
1080×1080 · 1:1 · Image/Video
Post Image (Square)
1:1 · Image/Video
1080 x 1080 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Post Image (Portrait)
1080×1350 · 4:5 · Image/Video
Post Image (Portrait)
4:5 · Image/Video
1080 x 1350 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Vertical Video
1080×1920 · 9:16 · Video
Vertical Video
9:16 · Video
1080 x 1920 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Horizontal Video
1920×1080 · 16:9 · Video
Horizontal Video
16:9 · Video
1920 x 1080 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Profile Avatar
256×256 · 1:1 · Image
Profile Avatar
1:1 · Image
26px
26px
26px
26px
256 x 256 px
Safe/overlay areas (from spec)
Preview shows relative aspect only. Export at the listed resolution for best quality.
Profile Banner
1200×400 · 3:1 · Image
Profile Banner
3:1 · Image
1200 x 400 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Community Icon
256×256 · 1:1 · Image (max 500 KB)
Community Icon
1:1 · Image (max 500 KB)
26px
26px
26px
26px
256 x 256 px
Safe/overlay areas (from spec)
Preview shows relative aspect only. Export at the listed resolution for best quality.
Community Banner (Desktop)
1920×384 · 5:1 · Image (max 5 MB)
Community Banner (Desktop)
5:1 · Image (max 5 MB)
480px
480px
1920 x 384 px
Safe/overlay areas (from spec)
Preview shows relative aspect only. Export at the listed resolution for best quality.
Community Banner (Mobile)
1600×480 · 10:3 · Image (max 5 MB)
Community Banner (Mobile)
10:3 · Image (max 5 MB)
1600 x 480 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Conversation Ad Thumbnail
400×300 · 4:3 · JPG/PNG (max 500 KB)
Conversation Ad Thumbnail
4:3 · JPG/PNG (max 500 KB)
400 x 300 px
Preview shows relative aspect only. Export at the listed resolution for best quality.
Type
Dimensions
Aspect Ratio
Format
Post Image (Recommended)
1200 x 628 px
1.91:1
Image
Post Image (Square)
1080 x 1080 px
1:1
Image/Video
Post Image (Portrait)
1080 x 1350 px
4:5
Image/Video
Vertical Video
1080 x 1920 px
9:16
Video
Horizontal Video
1920 x 1080 px
16:9
Video
Profile Avatar
256 x 256 px
1:1
Image
Profile Banner
1200 x 400 px
3:1
Image
Community Icon
256 x 256 px
1:1
Image (max 500 KB)
Community Banner (Desktop)
1920 x 384 px
5:1
Image (max 5 MB)
Community Banner (Mobile)
1600 x 480 px
10:3
Image (max 5 MB)
Conversation Ad Thumbnail
400 x 300 px
4:3
JPG/PNG (max 500 KB)
FAQ
What's the best Reddit post image size?
1200×628 (1.91:1) is the reliable default and previews cleanly in both card and classic view. For mobile-first reach, 1080×1350 (4:5) or 1080×1080 (1:1) take up more vertical space in the feed.
What size is a Reddit community banner?
1920×384 (5:1) for desktop, with a separate 1600×480 mobile banner. The mobile app crops the sides aggressively, so keep logos and text inside the middle half of the canvas.
What size should a subreddit icon or avatar be?
256×256 at 1:1 for both community icons and user avatars. Both render as circles, so keep the subject centered and leave margin at the edges. Community icons should stay under 500 KB.
What video specs does Reddit support?
MP4 or MOV up to 1 GB and 15 minutes, at up to 1080p in landscape (1920×1080), portrait (1080×1920), or square (1080×1080). Use 5+ Mbps for 1080p; most high-performing Reddit videos run 5–30 seconds.
Why do my Reddit images look compressed?
Reddit re-encodes uploads. Upload at native dimensions, use PNG for screenshots and anything with text, and avoid uploading an already-compressed JPEG a second time.
How many images can I put in a Reddit post?
Up to 20 in a gallery post, where supported by the subreddit. The first image becomes the feed thumbnail, so lead with the strongest one.
Reddit Media Dimensions | SpecSocial
Reddit
Post Image (Recommended): 1200 x 628 px • Post Image (Square): 1080 x 1080 px • Post Image (Portrait): 1080 x 1350 px • Vertical Video: 1080 x 1920 px • Horizontal Video: 1920 x 1080 px • Profile Avatar: 256 x 256 px • Profile Banner: 1200 x 400 px • Community Icon: 256 x 256 px • Community Banner (Desktop): 1920 x 384 px • Community Banner (Mobile): 1600 x 480 px • Conversation Ad Thumbnail: 400 x 300 px
Use 1200×628 (1.91:1) for link and image posts; 4:5 or 1:1 for mobile height. • Keep community banner art in the center—mobile crops both sides hard. • Design icons and avatars for a circular crop at 256×256. • Export PNG for screenshots and text, JPEG for photography. • Let the title carry the message; avoid heavy on-image branding.
Screenshots and diagrams outperform polished graphics in most subreddits. • Check each subreddit's rules—many restrict image posts or link formats. • Galleries (up to 20 images) work well for step-by-step or before/after posts. • Keep video under 30 seconds; Reddit autoplays muted in the feed. • Test legibility on dark mode—Reddit's default skews dark for most users.
