How to resize a picture for social media
- Add your picture. Pick it, drop it or paste it. It’s read on your device and never uploaded. Or try the sample.
- Choose the sizes. The popular ones are already selected; tick any others, or pick “All”.
- Choose what to keep. Each size shows in its real shape. Drag a picture to move the crop, or switch one size to “Fit inside” to keep the whole picture on a colour or on a blurred copy of it.
- Download. One size, or every size you picked in a ZIP, each named with its platform and pixels.
Social media image sizes (2026)
| Platform | Sizes (pixels) |
|---|---|
| Post 4:5 (1080 × 1350) Post 3:4 (1080 × 1440) Square (1080 × 1080) Story & Reel (1080 × 1920) | |
| Post 4:5 (1080 × 1350) Square (1080 × 1080) Link image (1200 × 630) Cover (851 × 315) Story (1080 × 1920) | |
| Post 4:5 (1080 × 1350) Square (1080 × 1080) Link image (1200 × 627) Profile banner (1584 × 396) Company page cover (4200 × 700) | |
| X | Post 16:9 (1600 × 900) Header (1500 × 500) |
| TikTok | Photo (1080 × 1920) |
| YouTube | Thumbnail (1280 × 720) Channel banner (2560 × 1440) |
| Pin 2:3 (1000 × 1500) | |
| Threads | Post 4:5 (1080 × 1350) Square (1080 × 1080) |
Profile pictures have their own tool: the profile picture tester shows yours in every app’s circle.
Crop or fit?
- Crop to fill uses the whole frame and cuts what doesn’t fit. Best for photos, where a little at the edges doesn’t matter. Drag to keep faces and words in.
- Fit inside keeps the whole picture and fills the rest with a colour or with a blurred copy of the picture. Best for designs, logos and pictures with text near the edges.
- Wide banners crop the most. A 4:1 LinkedIn banner keeps only a strip of a normal photo: choose the strip, or fit it.
Tips for pictures that look sharp everywhere
- Start big. A picture of at least 2000 px on its long side covers almost every size without being enlarged.
- Keep the subject in the middle. The middle survives every crop, from square to banner.
- Mind what covers the edges. Stories and Reels have buttons at the bottom and the profile at the top; banners have your photo over one corner.
Free, and what the app adds
The resizer is free, with no account and no limit. aiCarousels designs carousels and image posts in the size each platform wants, in your colours and fonts, and downloads them ready to post.
