What is the best image size for email?

600 pixels wide is the standard maximum for email images. Most email clients (including Gmail, Outlook, and Apple Mail) render content areas at 600px or less, making it the safest width.

Should I resize or compress images for email?

Both help. Resizing reduces pixel dimensions for proper display, while compressing reduces file size. For best results, resize first with this tool, then use our Compress Image tool to minimize file size.

What image format works best in email?

JPG is the most universally supported format for email images. PNG works well for graphics with transparency. Avoid WEBP and AVIF as older email clients may not support them.

Resize & Scale

Email Newsletter Image Size Tool Online

Name: Resize for Email - ElitePX
Rating: 4.9 (1243 reviews)
Author: ElitePX

Resize images to the perfect newsletter width (600px). Free and private.

Resize images to the perfect dimensions for email attachments and newsletters. All processing happens locally in your browser. No image is ever uploaded to a server, making email newsletter image size tool online on ElitePX completely private and instant.

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Compiling image processor

This is a free online tool. No account required.

Your images are processed entirely in your browser
Files are never uploaded to any server
No signup, no watermarks, no limits.
Works on any modern browser, desktop or mobile.

Also available at the main tool page: ElitePX: Resize for Email

Why Use This Tool?

Optimized for All Email Clients

600px wide images render correctly in Gmail, Outlook, Yahoo Mail, Apple Mail, and every major email client.

Reduce Bounce Rates

Oversized image attachments get blocked or bounce. Resizing ensures your emails reach their destination.

Faster Email Load Times

Smaller images mean faster-loading emails, especially for recipients on mobile data connections.

Privacy-First Processing

All resizing happens locally in your browser. Your images and email content remain completely private.

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Make Image Smaller

Shrink any image to a smaller size while keeping it sharp.

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Compress Image

Reduce image file size without visible quality loss.

Compress & Optimize

Email Newsletter Image Size Tool Online is powered by Resize for Email on ElitePX. The canonical version of this tool is available at elitepx.com/tools/resize-for-email. All image processing happens in your browser. Your files never leave your device.