Reddit Ads vs TikTok image sizes 2026

One file works on both for 0 formats, one layout with two exports for 0, and 2 need their own layout. 1 of 13 layouts below serve both platforms.

Reddit AdsvsTikTok

Check one creative against Reddit Ads and TikTok

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	TikTok	For both
Square	Image Ad / Promoted Post - Square (1:1) 1:13 MB JPGPNGGIF	—	Only on Reddit Ads
Vertical / Portrait	Image Ad / Promoted Post - Portrait (3:4) 3:43 MB JPGPNGGIF	In-Feed Single Image Ad 9:16100 MB JPGJPEGPNG	Different layouts
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	Carousel Ad - Image Card 9:16100 KB JPGJPEGPNG	Different layouts
Profile picture	—	Profile Picture / Avatar (organic account) 1:110 MB JPGPNG	Only on TikTok
Display banner	—	TikTok Ad Network Banner (600x500) 6:5100 MB JPGJPEGPNG	Only on TikTok

One creative set for both

Layouts: 13 · used on both platforms: 1

1:1Video Both

Master size Export sizes Max weight500 MBTikTok FormatsMP4MOV

Reddit Ads Video Ad (Promoted Video) 1200×1200

TikTok In-Feed Video Ad - Square 640×640
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
9:16Video

Master size Max weight500 MB FormatsMP4MOVMPEG3GP

TikTok In-Feed Video Ad - Vertical (recommended)·TopView Ad (reservation, first-impression takeover)·Reservation / Reach & Frequency In-Feed Video
1:1Image

Master size Export sizes Max weight3 MB FormatsJPGPNGGIF

Reddit Ads Image Ad / Promoted Post - Square (1:1) 1080×1080·Free-form Ad (Rich Text Post) 1200×1200
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
9:16Image

Master size Max weight100 KB FormatsJPGPNG

TikTok In-Feed Single Image Ad·Carousel Ad - Image Card
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)
6:5Image

Master size Max weight100 MB FormatsJPGPNG

TikTok TikTok Ad Network Banner (600x500)
16:5Image

Master size Max weight100 MB FormatsJPGPNG

TikTok TikTok Ad Network Banner (640x200)
32:5Image

Master size Max weight100 MB FormatsJPGPNG

TikTok TikTok Ad Network Banner (640x100)
2:3Image

Master size Max weight— FormatsJPGPNG

TikTok Streaming Ads - Media Card Image
16:9Video

Master size Max weight500 MB FormatsMP4MOVMPEG3GP+1

TikTok In-Feed Video Ad - Horizontal/Landscape

Text limits

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

Field	Reddit Ads	TikTok
Caption	50	35 · 50 · 100 · 150
Description	—	22 · 50 · 100
Advertiser name	—	10 · 20
App name	—	20 · 40
Headline	300	—
Body	40000	—
Title	—	35
Primary text	—	24

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

TikTok

In-Feed Video Ad - Vertical (recommended) 1080×1920 · 9:16 · Max duration: Up to 10 min (auction); 5-60s recommended, 9-15s ideal · 500 MB
In-Feed Video Ad - Square 640×640 · 1:1 · Max duration: Up to 10 min (auction); 5-60s recommended · 500 MB
In-Feed Video Ad - Horizontal/Landscape 960×540 · 16:9 · Max duration: Up to 10 min (auction); 5-60s recommended · 500 MB
TopView Ad (reservation, first-impression takeover) 1080×1920 · 9:16 · Max duration: 5-60s, recommend 9-15s · 500 MB
Reservation / Reach & Frequency In-Feed Video 1080×1920 · 9:16 · Max duration: 5-60s, recommend 9-15s · 500 MB