Social Media Image Sizes — 2026 Cheat Sheet
The most-asked social media image sizes in 2026: Instagram posts are 1080 × 1080 px, YouTube thumbnails 1280 × 720 px, Facebook covers 820 × 312 px and LinkedIn profiles 400 × 400 px. Use this table as your cheat sheet, then resize with the free in-browser tool below.
Social platforms re-encode whatever you upload, so shipping an image larger than the displayed size just wastes bandwidth and can get compressed again by the platform. Matching the official dimensions gives you the sharpest result with the smallest file. The table below covers the specs that matter for each platform in 2026.
Platform-by-Platform Sizes
| Platform | Use | Size (px) |
|---|---|---|
| Square post | 1080 × 1080 | |
| Portrait post | 1080 × 1350 | |
| Story / Reel | 1080 × 1920 | |
| Profile photo | 320 × 320 | |
| YouTube | Thumbnail | 1280 × 720 |
| YouTube | Channel banner | 2560 × 1440 |
| Cover photo | 820 × 312 | |
| Shared link preview | 1200 × 630 | |
| Profile photo | 400 × 400 | |
| Company cover | 1128 × 191 | |
| X (Twitter) | Header | 1500 × 500 |
| Standard pin | 1000 × 1500 |
The Two Sizes You’ll Use Most
For everyday posts, two sizes cover most of your work: 1080 × 1080 for square Instagram posts and 1200 × 630 for any link preview shared on Facebook, LinkedIn or X. Design those at their exact size and the platform won’t crop or re-encode them into something blurry.
How to Resize for Any Platform
- Pick the size you need from the table above.
- Open the resizer and drop in your image.
- Set the exact width and height, locking the aspect ratio or filling the frame.
- Compress and download — nothing is uploaded to a server.
Related Tools
Frequently Asked Questions
What is the best Instagram post size?
1080 × 1080 pixels for square posts, which is what Instagram displays sharpest. Portrait posts are 1080 × 1350 and stories / reels are 1080 × 1920.
What size is a Facebook cover photo in 2026?
Facebook cover photos display at 820 × 312 pixels on desktop. Upload at that size or larger to keep it sharp, and keep important content in the center safe zone.
What is the recommended YouTube thumbnail size?
1280 × 720 pixels at a 16:9 aspect ratio, under 2MB. Designing at that size keeps text readable when YouTube scales the thumbnail down.
Do I need different image sizes for each platform?
Yes. Each platform crops or scales differently, so matching the exact dimensions avoids unwanted cropping and keeps images sharp. One square 1080×1080 master covers most posts.