The optimal Facebook post image size is 1200x630 pixels with a 1.91:1 aspect ratio. This dimension is used for shared images, link preview images (Open Graph), and Facebook ads. Getting this size right ensures your content displays perfectly across desktop and mobile Facebook feeds.
Facebook compresses and resizes images that do not match recommended dimensions. By uploading at exactly 1200x630, you maintain the highest quality because Facebook applies minimal additional processing. Images uploaded at incorrect aspect ratios may be cropped or letterboxed.
The 1200x630 dimension is also the standard for Open Graph images, meaning this same size works for link preview thumbnails when your content is shared on Facebook, LinkedIn, and other platforms that support OG tags.
To create the perfect Facebook image with ImgTools, upload your source photo, crop to the 1.91:1 aspect ratio if needed, then resize to 1200x630. For landscape photographs, this ratio works naturally. For portrait photos, you will need to select the most impactful section to fit the landscape format.
Save as JPEG at 80-85% quality for photographs. Facebook recommends keeping image files under 100 KB for the fastest loading in the feed, though up to 8 MB is accepted. Larger files will be compressed by Facebook anyway.
For Facebook cover photos, use 820x312 instead. For Facebook event covers, use 1920x1005. For profile pictures, use a 170x170 square that will be displayed as a circle.
ImgTools processes everything in your browser with complete privacy. Your Facebook content stays on your device until you are ready to upload it to the platform.