Resize images for email.

600px wide, fast-loading, inbox-ready.

or drop an image here

JPG, PNG, WebP, HEIC, AVIF, GIF · Up to 15MB free

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The problem

Sending full-resolution photos in emails makes them slow to load and they look oversized in the email client. Many email servers reject attachments over 25MB.

The fix

Upload your image. Set 600px width — the email standard. Export as JPG or WebP. Attach a fast-loading, correctly sized image to your email.

How it works

600px wide: the email standard
Smaller files load faster in any inbox
JPG or WebP for smallest file size
Scales to any email template width

FAQ

What size should images be in emails?
Images in HTML emails should be 600px wide — the standard email template width. Keep file sizes under 1MB per image. JPG at 600px wide is typically 50–150KB.
Why are my email images too large?
Most email clients display images at screen size even if the email template is 600px wide. A 4000px wide photo in a 600px email template loads the full file size regardless of how it displays.
What image format is best for email?
JPG is the safest format for email — universally supported by all email clients. WebP has better compression but isn't supported by Outlook. PNG works for images with transparency but produces larger files.
How do I resize an image for an email newsletter?
Upload your image. Set the width to 600px (or 1200px for retina displays) and let the height scale proportionally. Export as JPG. Your image will display crisply in Gmail, Apple Mail, and Outlook.
Resize for email — takes 10 seconds.
No signup. No software. Just the right size.
Resize Images for Email — ResizeTh.is — ResizeTh.is