Mailchimp Campaign Image Resizer564 × 564 px
Resize any image to exactly 564×564px for Mailchimp. Free, instant, and nothing leaves your browser.
- Dimensions
- 564 × 564 px
- Aspect ratio
- 1:1
- Max file size
- 1MB
- Best format
- JPG
How to resize an image for Mailchimp
Add your image
Click Choose image or drop a file into the box above. JPG, PNG and WebP all work.
Check the crop
The preset is already set to 564×564px. Drag inside the preview if you want to reposition the crop.
Download
Pick a format and click Download. You get a Mailchimp Campaign Image at exactly 564×564px.
Mailchimp Campaign Image size at a glance
Mailchimp campaign images at 564×564 fit within the padded content area of standard email templates. The aspect ratio is flexible — square is a safe default, but you can adjust height to suit the content.
Why 564×564 matters
In-body images break up text and drive engagement in email campaigns. Correctly sized images avoid the scaling artifacts that make emails look unprofessional across different email clients.
What happens when the size is wrong
Images wider than the template cause horizontal scrolling on mobile. Large file sizes slow loading and increase the chance of images being blocked by email clients or flagged as spam.
Best practices
- Optimize aggressively for file size — aim for under 200KB per image for reliable loading.
- Always set alt text for when images are blocked by the recipient's email client.
- Test rendering in major email clients (Gmail, Outlook, Apple Mail) before sending.
Frequently asked questions
What size should a Mailchimp Campaign Image be?
The recommended size for a Mailchimp Campaign Image is 564×564 pixels (1:1 aspect ratio). The maximum file size is 1MB.
How do I resize an image for Mailchimp Campaign Image?
Upload your image to the resizer above. It will automatically crop and resize to 564×564px. Adjust the crop position if needed, then download the result. Your image never leaves your device.
Which format should I use for a Mailchimp Campaign Image?
Mailchimp accepts JPG, PNG. We recommend JPG — In-body images in Mailchimp campaigns. The 564px width accounts for padding in the standard template. Aspect ratio is flexible — use whatever suits the content.
Is my image uploaded anywhere?
No. TinyResize runs entirely in your browser. The file is read from your device, resized on your device, and downloaded from your device. Nothing is sent to a server.