Reddit Ads vs Snapchat image sizes 2026

One file works on both for 0 formats, one layout with two exports for 1, and 1 need their own layout. 1 of 11 layouts below serve both platforms.

Reddit AdsvsSnapchat

Check one creative against Reddit Ads and Snapchat

Drag & drop your creative or click to choose a file Checked against 23 placements on both platforms

Or type a size

Nothing is uploaded or saved — the check runs entirely in your browser.

Format by format

The main size of each format on both platforms, and whether one file covers both.

Placement	Reddit Ads	Snapchat	For both
Square	Image Ad / Promoted Post - Square (1:1) 1:13 MB JPGPNGGIF	Collection Ad - Product Tile 1:12 MB JPGPNG	One layout, two exports
Vertical / Portrait	Image Ad / Promoted Post - Portrait (3:4) 3:43 MB JPGPNGGIF	Spotlight Ad (vertical full-screen) 9:165 MB JPGPNG	Different layouts
Stories / Reels	—	Single Image or Video Ad (Top Snap) 9:165 MB JPGPNG	Only on Snapchat
Landscape	Image Ad / Promoted Post - Landscape (16:9) 16:93 MB JPGPNGGIF	—	Only on Reddit Ads
Carousel	Carousel Ad Card 4:5 (also 1:1, 4:3, 16:9; same ratio on all cards recommended)20 MB JPGPNGGIF	—	Only on Reddit Ads
Profile picture	—	Profile Picture / Public Profile Avatar 1:12 MB JPGPNG	Only on Snapchat
Cover / Header	—	Story Ad - Discover Tile / Cover 3:52 MB PNG	Only on Snapchat

One creative set for both

Layouts: 11 · used on both platforms: 1

1:1Image Both

Master size Export sizes Max weight2 MBSnapchat FormatsJPGPNG

Reddit Ads Image Ad / Promoted Post - Square (1:1) 1080×1080·Free-form Ad (Rich Text Post) 1200×1200

Snapchat Collection Ad - Product Tile 160×160
9:16Image

Master size Max weight5 MB FormatsJPGPNG

Snapchat Single Image or Video Ad (Top Snap)·Story Ad - Individual Snap·Collection Ad - Hero Image/Video·Spotlight Ad (vertical full-screen)·Sponsored Snap (direct Chat/inbox)
4:5Image

Master size Export sizes Max weight3 MB FormatsJPGPNG

Reddit Ads Image Ad / Promoted Post - Portrait (4:5) 1080×1350·Carousel Ad Card 1200×1500·Interactive Ad (Quiz, Poll, Countdown) 816×1024
4:3Image

Master size Export sizes Max weight3 MB FormatsJPGPNGGIF

Reddit Ads Image Ad / Promoted Post - Landscape (4:3) 1440×1080·Image/Video Ad Thumbnail (classic-mode) 400×300
9:19.5Image

Master size Export sizes Max weight300 KB Formats—

Snapchat Sponsored Filter (static) 945×2048·Sponsored Filter (animated) 720×1560
9:16Video

Master size Max weight1 GB FormatsMP4MOV

Snapchat Standard Commercial (non-skippable)·Extended Play Commercial
3:4Image

Master size Max weight3 MB FormatsJPGPNGGIF

Reddit Ads Image Ad / Promoted Post - Portrait (3:4)
16:9Image

Master size Max weight3 MB FormatsJPGPNGGIF

Reddit Ads Image Ad / Promoted Post - Landscape (16:9)
2:3Image

Master size Max weight2 MB Formats—

Snapchat Public Profile Header Image
3:5Image

Master size Max weight2 MB FormatsPNG

Snapchat Story Ad - Discover Tile / Cover
1:1Video

Master size Max weight1 GB FormatsMP4MOV

Reddit Ads Video Ad (Promoted Video)

Text limits

Every value each platform uses for the field, characters unless noted

Field	Reddit Ads	Snapchat
Headline	300	34 · 55
Caption	50	—
Body	40000	—
Advertiser name	—	32
Message	—	500

Video side by side

Reddit Ads

Video Ad (Promoted Video) 1200×1200 · 1:1 (also 4:5, 4:3, 16:9 supported) · Max duration: Up to 15 minutes (5-30 seconds recommended; minimum 2 seconds) · 1 GB

Snapchat

Standard Commercial (non-skippable) 1080×1920 · 9:16 · Max duration: 3-6 sec (100% non-skippable) · 1 GB
Extended Play Commercial 1080×1920 · 9:16 · Max duration: 7-180 sec (first 6 sec non-skippable) · 1 GB