Platform preset
FacebookFacebook image resizer
Facebook renders the same upload very differently on desktop and mobile, so the safest approach is a correctly sized image with the subject centred.
Runs in your browser · nothing is uploaded
Ready when you are
Upload your image
Drop an image here
JPG · PNG · WebP · GIF · HEIC (where your browser supports it)
Facebook image sizes
These are the presets the tool above uses, taken from the same configuration.
| Image type | Recommended size | Aspect ratio | Format |
|---|---|---|---|
| Facebook post | 1200 × 630 px | 40:21 | jpg |
| Facebook cover | 1640 × 856 px | 205:107 | jpg |
Last verified 2026-01-15 · Source: Meta Business Help — image sizes
Cover photos lose their sides on mobile
A cover uploaded at 1640 × 856 fills the desktop header, but mobile shows a narrower central slice. Anything at the far left or right may not be visible to most of your audience.
FAQ
Frequently asked questions
- What size is a Facebook post image?
- 1200 × 630 is a dependable landscape size for feed posts and link previews.
- What size is a Facebook cover photo?
- 1640 × 856 for pages, with important content kept centred for mobile.
- Are my images uploaded to a server?
- No. Every step — decoding, cropping, resizing and encoding — runs in your browser using the Canvas API. The image file never leaves your device, so nothing is stored or transmitted by us.
Related tools
- Resize an image to exact dimensionsResize any JPG, PNG or WebP to exact pixel dimensions in your browser. No signup, no upload, no watermark.
- Crop an image to any aspect ratioCrop photos to 1:1, 4:5, 16:9 or any custom ratio right in the browser. Drag to reposition, zoom, and download.
- Compress an imageShrink JPG, PNG and WebP files in your browser. Adjust quality, see the estimated size before you download.
Related guides
Sources & review
Last reviewed 2026-01-15.
- Meta Business Help Center — image sizes