Optimize images for Ghost CMS — compress feature images, post graphics and author avatars to the right dimensions. Free, browser-based, no plugins required.
All recommended Ghost image dimensions for 2026. Upload at these exact sizes and compress before uploading to avoid any quality loss from platform-side re-compression.
| Type | Width x Height | Aspect Ratio | Notes |
|---|---|---|---|
| Feature Image | 1200 x 630 px | 40:21 | Post header and social sharing preview — matches OG standard |
| Post Content Image | 2000 x 1200 px | 5:3 | In-content images — Ghost content width is typically 720px but retina screens need 2x |
| Author Avatar | 400 x 400 px | 1:1 | Author profile picture — displayed as circle, keep under 30 KB |
Open the Compress tool, upload your Ghost blog images and set quality to 80-85%. Ghost does not compress images on upload — what you upload is exactly what gets served, so pre-optimization is essential.
Convert to WebP using the Convert tool for an extra 25-35% reduction. Ghost supports WebP natively and modern themes serve it automatically. This is the single biggest win for Ghost blog performance.
Download the optimized files and upload via the Ghost editor or Admin panel. For feature images, use exactly 1200x630 px to ensure perfect social sharing previews on Twitter, Facebook and LinkedIn.
Ready to optimize?
Use Compress to reduce file size without quality loss, or Convert to WebP for an extra 25-35% size reduction.
Ghost performs basic image processing (generating responsive srcset sizes) but does not compress your original upload. Unlike WordPress with plugins, Ghost serves your original file quality. Pre-compressing with SammaPix is the only way to ensure small file sizes.
1200x630 px is ideal. This matches the Open Graph standard used by Facebook, Twitter and LinkedIn for link previews. Ghost themes like Casper, Edition and Dawn all display feature images at this ratio or crop to it.
Ghost supports WebP uploads natively since version 4.0. Simply convert your images to WebP using SammaPix, then upload them normally through the Ghost editor. The editor accepts WebP files and serves them directly — no configuration needed.
Ghost has no per-post image limit. However, each image adds to page weight. A typical blog post should stay under 1.5 MB total including all images. With SammaPix compression, you can include 8-10 high-quality images while keeping the total page weight manageable.
Upload images at 2x the display width. If your Ghost theme content area is 720px wide, upload images at 1440px or 2000px wide. Ghost's responsive image engine will serve the right size to each device. Compress with SammaPix first — retina images are larger by nature, so compression is even more important.
Optimize for WordPress
4 sizes - Featured Image, Thumbnail, Medium, Full / WooCommerce
Optimize for Webflow
4 sizes - Hero Background, CMS Thumbnail, Background 2K, Portfolio Image
Optimize for Squarespace
4 sizes - Hero Banner, Blog Cover, Product Image, Logo
Optimize for Wix
4 sizes - Hero Banner, Gallery Image, Logo, Blog Featured
No uploads
All compression happens entirely in your browser. Your images never leave your device.
Batch process
Optimize multiple images at once with the same settings. Download all as ZIP in seconds.
Free forever
Core optimization tools are completely free. No watermarks, no ads, no file limits.