YouTube
YouTube thumbnail
Video 3840 x 2160 px, Shorts 2160 x 3840 px, JPG or PNG, 2 MB from a phone, 50 MB from a computer.
Open the resizerFree tools
Social media image sizes
Official sizes, ratios and file limits for the formats people look up most, each with a free tool that resizes your image in the browser. Every figure comes from the platform’s own help page, with a link and the date we checked it.
Pick a format
Pick a format
Instagram post
1080 pixels wide, 566 to 1440 pixels tall, ratio from 1.91:1 to 3:4.
Open the resizerYouTube
YouTube banner
Recommended 2560 x 1440 px, minimum 2048 x 1152 px, safe area 1235 x 338 px, 6 MB maximum.
Open the resizerFacebook cover photo
Page cover 851 x 315 px as a sRGB JPG under 100 KB, minimum 400 x 150 px.
Open the resizerLinkedIn banner
Profile cover 1584 x 396 px (JPG or PNG, under 8 MB). Page cover 1512 x 256 px (PNG or JPEG, 3 MB).
Open the resizerInstagram story
9:16 at 1080 x 1920 px recommended, 600 x 1067 px minimum, photos up to 30 MB (Meta Stories requirements).
Open the resizerAll sizes at a glance
| Format | Size | Aspect ratio | File limit |
|---|---|---|---|
| YouTube thumbnail | 3840 x 2160 px (Shorts 2160 x 3840 px) | 16:9 (Shorts 9:16) | 2 MB from a phone, 50 MB from a computer |
| Instagram post | 1080 px wide, 566 to 1440 px tall | 1.91:1 to 3:4 | Not stated |
| YouTube banner | 2560 x 1440 px recommended, 2048 x 1152 px minimum | 16:9 | 6 MB |
| Facebook cover photo | 851 x 315 px loads fastest, 400 x 150 px minimum | 16:9 on computers, 2.4:1 on mobile | 100 KB for the fastest loading file |
| LinkedIn banner | Profile 1584 x 396 px, Page 1512 x 256 px | 4:1 (profile) | 8 MB (profile), 3 MB (Page) |
| Instagram story | 1080 x 1920 px recommended, 600 x 1067 px minimum | 9:16 | 30 MB for photos |
How these sizes are sourced
We only publish figures that a platform’s own help page states. Each page links to the help article, shows the date we read it and says which numbers the article gives and which ones are our arithmetic. When a platform does not publish a size, we do not publish one either.
Every resizer runs in your browser with the canvas API. Your image is never uploaded.
Sources
Sources
Every figure on this page comes from these official pages, read on the date shown. If a page and this one disagree, trust the platform’s page.
- YouTube Help: Add custom thumbnails on YouTubeChecked on 2 November 2026
- Instagram Help Center: Image resolution of photos you share on InstagramChecked on 2 November 2026
- YouTube Help: Manage your channel brandingChecked on 2 November 2026
- Facebook Help Centre: Facebook Page profile picture and cover photo dimensionsChecked on 2 November 2026
- Facebook Help Centre: Add or change your cover photo on FacebookChecked on 2 November 2026
- LinkedIn Help: Add or change the cover image on your profileChecked on 2 November 2026
- LinkedIn Help: Image specifications for your LinkedIn Pages and Career PagesChecked on 2 November 2026
- Meta Business Help Centre: Design requirements for Instagram Stories adsChecked on 2 November 2026
FAQ
Image size questions
Where do these image sizes come from?
From the help pages of the platforms themselves: YouTube Help, the Instagram Help Center, the Facebook Help Centre, LinkedIn Help and the Meta Business Help Centre. Each page lists its sources and the date we checked them.
Do the resizers upload my images?
No. They run in your browser and nothing is sent to Cascads or to any server.
Why is my platform not listed?
We list a format only when the platform’s own help pages publish its size. When a platform does not publish one, we leave it out rather than repeat figures from third-party sites.
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