← Back to Home

Reddit

Specs last changed: Aug 7, 2026 · Verified against sources Aug 7, 2026

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

Post Image (Recommended)

Dimensions:: 1200 x 628 px
Aspect Ratio:: 1.91:1
Format:: Image

Post Image (Square)

Dimensions:: 1080 x 1080 px
Aspect Ratio:: 1:1
Format:: Image/Video

Post Image (Portrait)

Dimensions:: 1080 x 1350 px
Aspect Ratio:: 4:5
Format:: Image/Video

Vertical Video

Dimensions:: 1080 x 1920 px
Aspect Ratio:: 9:16
Format:: Video

Horizontal Video

Dimensions:: 1920 x 1080 px
Aspect Ratio:: 16:9
Format:: Video

Profile Avatar

Dimensions:: 256 x 256 px
Aspect Ratio:: 1:1
Format:: Image

Profile Banner

Dimensions:: 1200 x 400 px
Aspect Ratio:: 3:1
Format:: Image

Community Icon

Dimensions:: 256 x 256 px
Aspect Ratio:: 1:1
Format:: Image (max 500 KB)

Community Banner (Desktop)

Dimensions:: 1920 x 384 px
Aspect Ratio:: 5:1
Format:: Image (max 5 MB)

Community Banner (Mobile)

Dimensions:: 1600 x 480 px
Aspect Ratio:: 10:3
Format:: Image (max 5 MB)

Conversation Ad Thumbnail

Dimensions:: 400 x 300 px
Aspect Ratio:: 4:3
Format:: JPG/PNG (max 500 KB)

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.