Best Image Format for Email: JPEG, PNG, or GIF?
Choose the right image format for email campaigns. JPEG for photos, PNG for logos, GIF for animation — and why WebP is still risky.
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Tags: image, email, formats
Image Formats for Email: JPEG vs PNG for Campaigns Email is the place where modern web standards go to be humbled. The same HTML that renders perfectly in Chrome may look broken in Outlook 2019, and image formats that every browser supported for years can fail silently in an email client. Choosing the right image format for email campaigns is less about compression theory and more about the reality of email client diversity. The Email Client Landscape in 2025 Before choosing a format, understand where your emails will be rendered: Gmail (web and mobile app): Generally modern rendering Apple Mail (iOS and macOS): Safari-based renderer, broad format support Outlook 2016/2019/2021 (Windows): Uses Microsoft Word's rendering engine — notoriously poor CSS and image support Outlook on the Web…
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