Resize for Tumblr Posts
Tumblr images display at 540px wide in the dashboard. 2:3 vertical works well.
Drop your image here
or click to browse from your computer
Supports PNG, JPG, WebP up to 50MB
Popular Presets
Tumblr Post Image Tips
Why Use ImageWand?
Instant Processing
Resize images in seconds with our browser-based tool. No upload wait times.
100% Private
Your images never leave your device. All processing happens locally in your browser.
Frequently Asked Questions
What size is a Tumblr Post Image?▼
Tumblr Post Image should be 540x810 pixels with a 2:3 aspect ratio. This is the optimal size recommended by Tumblr.
How do I resize an image for Tumblr Post Image?▼
Upload your image to ImageWand, use the Tumblr Post Image preset which automatically sets the correct 540x810 dimensions, and download your resized image.
Why is image size important for Tumblr?▼
Using the correct image dimensions ensures your content looks professional, isn't cropped unexpectedly, and displays consistently across devices. Tumblr optimizes for these specific dimensions.
Is this tool free?▼
Yes! ImageWand is completely free with no signup required. Resize unlimited images for any social media platform.