Mailchimp Email Header Resizer600 × 200 px
Resize any image to exactly 600×200px for Mailchimp. Free, instant, and nothing leaves your browser.
- Dimensions
- 600 × 200 px
- Aspect ratio
- 3:1
- 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 600×200px. Drag inside the preview if you want to reposition the crop.
Download
Pick a format and click Download. You get a Mailchimp Email Header at exactly 600×200px.
Mailchimp Email Header size at a glance
Mailchimp email headers at 600×200 span the full width of the standard email template. They set the visual tone for the email and are often the first image recipients see when they open the message.
Why 600×200 matters
Email headers establish brand identity and set expectations for the content below. A well-designed header at the correct width prevents awkward scaling issues across email clients.
What happens when the size is wrong
Oversized headers cause slow loading and may trigger spam filters in some email clients. Wrong widths get scaled by the email client, creating blurry or distorted results, especially in Outlook.
Best practices
- Keep file size under 200KB for fast loading — many recipients are on mobile connections.
- Design for image-blocked viewing — include alt text and don't put critical information only in the image.
- Use 600px width to match Mailchimp's standard template width and avoid client-side scaling.
Frequently asked questions
What size should a Mailchimp Email Header be?
The recommended size for a Mailchimp Email Header is 600×200 pixels (3:1 aspect ratio). The maximum file size is 1MB.
How do I resize an image for Mailchimp Email Header?
Upload your image to the resizer above. It will automatically crop and resize to 600×200px. Adjust the crop position if needed, then download the result. Your image never leaves your device.
Which format should I use for a Mailchimp Email Header?
Mailchimp accepts JPG, PNG. We recommend JPG — Header images span the full email width in standard Mailchimp templates (600px). Keep file size small for fast loading across email clients.
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.