Social Media Image Size Checkers
Free tools for checking image dimensions, aspect ratios and platform requirements before you post.
Instagram Image Size CheckerCheck an image's size, ratio and crop for Instagram.YouTube Thumbnail CheckerCheck a thumbnail's size, ratio and file size for YouTube.LinkedIn Image Size CheckerCheck posts, profile photos and backgrounds for LinkedIn.Facebook Image Size CheckerCheck covers, profile pictures and Stories for Facebook.TikTok Size CheckerCheck TikTok profile photos and carousel ad images.
Why every platform wants a different image
Each platform designs around where people see your image: a full-screen phone Story, a widescreen video preview, a thin profile banner or a small circle. That's why one image rarely fits everywhere — a 16:9 YouTube thumbnail is far too wide for a 9:16 Story.
Platforms also differ in what they enforce. Some refuse images that are too small or too large; others accept anything and crop or scale it. Each checker marks which rules are required and which are just recommended.
Quick reference
| Destination | Size | Aspect ratio |
|---|---|---|
| Instagram Portrait Post | 1080 × 1350 px | 4:5 |
| Instagram Story | Not published | 9:16 |
| YouTube Thumbnail | 3840 × 2160 px | 16:9 |
| LinkedIn Background Photo | 1584 × 396 px | 4:1 |
| LinkedIn Link Preview Image | 1200 × 627 px | 1.91:1 |
| Facebook Page Profile Picture | 320 × 320 px | 1:1 |
| TikTok Profile Photo | At least 20 × 20 px | 1:1 |
Every checker lists its official sources and the date its requirements were last checked. Not sure what shape your image is? Start with the Image Aspect Ratio Checker.