Facebook Image Resizer
Upload a picture and resize it to the Facebook post image size, 1200 x 630 pixels. Free, and it stays in your browser.
1. Upload Image
Click to upload or drag and drop
PNG, JPG, or WEBP
2. Choose Size
Post Image
1200 x 630px · Recommended
Cover Photo
820 x 312px · Desktop
Profile Picture
170 x 170px · Square
Story
1080 x 1920px · 9:16 ratio
Event Cover
1920 x 1005px · Recommended
Facebook post image size
- Recommended: 1200 x 630 pixels.
- Minimum in posterly's checks: 600 x 315 pixels.
- Standard aspect ratios: 1.91:1, 1:1, 4:5.
- File size: up to 10 MB per photo, according to the Facebook Graph API.
These are the numbers posterly checks a post against before it is published to a Facebook Page. Facebook can change what it displays, so treat them as safe targets.
Do this with your AI agent
Already use Claude or ChatGPT? Connect posterly over MCP and paste this prompt.
Post this image to our Facebook Page tomorrow at 10am with a short caption, and check it with validate_post first.
Image resized? Schedule it to your Facebook Page with posterly.
posterly lets you schedule posts across 18 platforms with AI-powered captions. Start with a free 7-day trial.
Resize for other platforms
Need Instagram sizes? Open the Instagram photo size guide, or use the image resizer for every platform. For Facebook formats and limits, read the Facebook guide, or schedule Facebook posts with posterly.
Frequently Asked Questions
What size should a Facebook post image be?
posterly recommends 1200 x 630 pixels for a Facebook post image, and checks images against a minimum of 600 x 315 pixels. The standard ratios are 1.91:1, 1:1, 4:5.
What is the Facebook photo file size limit?
Facebook's Graph API says a photo file cannot exceed 10 MB. Very high-resolution files can also be rejected, and 30 megapixels is a typical ceiling.
Does the Facebook image resizer crop my picture?
Yes. It fills the chosen size and crops the edges of the picture that do not fit, centred. Pick a source with the subject near the middle.
Can I resize for Facebook Stories, covers and profile pictures too?
The tool lists more Facebook presets, including Story, cover photo and profile picture, and every other platform is one click away. Check the preset against Facebook's current guidance before you rely on it for a cover or profile picture.
Do I need an account?
No. The resizer runs in your browser with no signup, and your picture is not uploaded to posterly.
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