Reddit Ads vs VK (ВКонтакте) image sizes 2026

One file works on both for 1 formats, one layout with two exports for 2, and 1 need their own layout. 4 of 14 layouts below serve both platforms.

Reddit AdsvsVK (ВКонтакте)

Check one creative against Reddit Ads and VK (ВКонтакте)

Drag & drop your creative or click to choose a file Checked against 33 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	VK (ВКонтакте)	For both
Square	Image Ad / Promoted Post - Square (1:1) 1:13 MB JPGPNGGIF	Organic Feed Post — Square 1:150 MB JPGPNGGIF	One file
Vertical / Portrait	Image Ad / Promoted Post - Portrait (3:4) 3:43 MB JPGPNGGIF	Dzen Channel Promo — Card Image 3:4 3:4— JPGPNG	One layout, two exports
Landscape	Image Ad / Promoted Post - Landscape (16:9) 16:93 MB JPGPNGGIF	Universal Ad — Landscape 16:9 16:95 MB JPGPNG	One layout, two exports
Carousel	Carousel Ad Card 4:5 (also 1:1, 4:3, 16:9; same ratio on all cards recommended)20 MB JPGPNGGIF	Carousel for Websites — Card 1:15 MB JPGPNG	Different layouts
Profile picture	—	Community / Profile Avatar 1:1— JPGPNGGIF	Only on VK (ВКонтакте)
Cover / Header	—	Community Live Cover (Живая обложка) 9:16— JPGPNG	Only on VK (ВКонтакте)
Display banner	—	HTML5 Banner — 300x600 (Desktop) 1:2150 KB ZIP	Only on VK (ВКонтакте)

One creative set for both

Layouts: 14 · used on both platforms: 4

1:1Image Both

Master size Export sizes Max weight150 KBVK (ВКонтакте) Formats—

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

VK (ВКонтакте) Universal Ad — Square 1:1 600×600·Carousel for Websites — Card 600×600·Carousel for Apps — Card 600×600·Collage / Slider — Media File 600×600·HTML5 Banner — 300x300 (Desktop) 300×300·Organic Feed Post — Square 1080×1080
4:5Image Both

Master size Export sizes Max weight3 MBReddit Ads FormatsJPGPNG

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

VK (ВКонтакте) Universal Ad — Vertical 4:5 1080×1350
16:9Image Both

Master size Export sizes Max weight3 MBReddit Ads FormatsJPGPNG

Reddit Ads Image Ad / Promoted Post - Landscape (16:9) 1920×1080

VK (ВКонтакте) Universal Ad — Landscape 16:9 1080×607·MAX Channel Banner — 16:9 1080×607
3:4Image Both

Master size Export sizes Max weight3 MB FormatsJPGPNG

Reddit Ads Image Ad / Promoted Post - Portrait (3:4) 1080×1440

VK (ВКонтакте) Dzen Channel Promo — Card Image 3:4 1200×1600
16:9Video

Master size Max weight90 MB FormatsMP4MOV

VK (ВКонтакте) In-Feed Video Ad·In-Stream Video Ad — 16:9·Shoppable Ads — Video
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
3:5Image

Master size Max weight150 KB FormatsZIP

VK (ВКонтакте) HTML5 Banner — 240x400 (Desktop)
1:2Image

Master size Max weight150 KB FormatsZIP

VK (ВКонтакте) HTML5 Banner — 300x600 (Desktop)
6:5Image

Master size Max weight150 KB FormatsZIP

VK (ВКонтакте) HTML5 Banner — 300x250 (Mobile)
5:2Image

Master size Max weight— FormatsJPGPNG

VK (ВКонтакте) Community Cover (Обложка сообщества)
9:16Image

Master size Max weight— FormatsJPGPNG

VK (ВКонтакте) Community Live Cover (Живая обложка)
1.47:1Image

Master size Max weight— FormatsJPGPNG

VK (ВКонтакте) Community Menu / Button Tile (Кнопка меню)
1:1Video

Master size Max weight1 GB FormatsMP4MOV

Reddit Ads Video Ad (Promoted Video)
9:16Video

Master size Max weight90 MB FormatsMP4MOV

VK (ВКонтакте) Vertical / Fullscreen Video 9:16

Text limits

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

Field	Reddit Ads	VK (ВКонтакте)
Description	—	25 · 32 · 50 · 90 · 108
Title	—	20 · 25 · 40 · 72
CTA	—	25 · 30 · 40
Primary text	—	220 · 16384
Headline	300	—
Caption	50	—
Body	40000	—
Company name	—	115

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

VK (ВКонтакте)

Vertical / Fullscreen Video 9:16 1080×1920 · 9:16 · Max duration: Up to 30 sec (up to 300 sec for community/mini-app objectives; up to 180 sec in reach video campaigns) · 90 MB
In-Feed Video Ad 1920×1080 · 16:9 (also 1:1, 4:5, 9:16) · Max duration: Up to 30 sec for 16:9, 4:5 and 9:16; up to 300 sec for 1:1 and for community/mini-app objectives; up to 180 sec in reach video campaigns · 90 MB
In-Stream Video Ad — 16:9 1920×1080 · 16:9 · Max duration: 6–30 sec · 90 MB
Shoppable Ads — Video 1920×1080 · 16:9 · Max duration: 5–30 sec · 90 MB