What size should WordPress featured images be?

Common recommended sizes are 1200×630 px for Open Graph or 1200×675 for 16:9. Many themes use 1200px width. Check your theme’s recommended featured image size.

What about WordPress thumbnail sizes?

WordPress generates thumbnails from your upload. Upload at least as large as the largest size your theme uses (e.g. 1200px wide). Then WordPress creates smaller thumbnails automatically.

Is your resize tool free?

Yes. Our resize and compress tools run in your browser. No signup, no watermarks, and we never upload your images to our servers.

Resize Image for WordPress – Sizes & Guide

WordPress works with many image sizes for featured images, thumbnails, and content. This guide covers recommended dimensions and how to resize and compress images before uploading.

Recommended image sizes for WordPress

Featured image (common): 1200×630 px or 1200×675 — OG / 16:9
Full width content: 1200px wide or theme max — theme-dependent
In-content images: 1200px or less on longest side — compress for speed

Why size matters

Uploading images that are too large wastes space and can slow your site. Resizing to your theme’s recommended size (often 1200px wide) and compressing keeps quality good and pages fast. Our free resize image and compress image tools run in your browser so your photos never leave your device.

How to resize for WordPress

Check your theme’s recommended featured image size (e.g. 1200×630).
Use our resize tool to set width and height.
Use our compress tool to reduce file size (e.g. under 200–300 KB).
Upload to WordPress media library.

Tips

Use 1200×630 for featured images if your theme supports it; it works well for social previews. Use JPG or WebP for photos to keep file size down. WordPress can generate thumbnails, so upload at least as large as the largest size you need.

Summary

Resize featured and content images to your theme’s recommended size (often 1200px wide). Compress to keep files under a few hundred KB. Use our free resize image and compress image tools in your browser. No signup, no upload to our servers.

Resize image now →

Frequently asked questions

What size should WordPress featured images be?: Common recommended sizes are 1200×630 px for Open Graph or 1200×675 for 16:9. Many themes use 1200px width. Check your theme’s recommended featured image size.
What about WordPress thumbnail sizes?: WordPress generates thumbnails from your upload. Upload at least as large as the largest size your theme uses (e.g. 1200px wide). Then WordPress creates smaller thumbnails automatically.
Is your resize tool free?: Yes. Our resize and compress tools run in your browser. No signup, no watermarks, and we never upload your images to our servers.

Resize image for WordPress