Email image optimizer.

Resize images to email widths and compress them in the browser. Download the smaller file.

Price
Free, no signup
Category
Content

Auto keeps PNG transparency. Use PNG for logos, JPEG for photos, and WebP when the inbox supports it.

Drop images here, or click to choose files.

JPEG, PNG, WebP, and other image formats.

Email image optimizerResult

Optimized images appear here.

Original size, new size, dimensions, and a download for each file.

How this optimizer works.

Pick an email width preset or set a custom max width and quality. Drop images here. The browser resizes them on a canvas and writes JPEG, PNG, or WebP.

Auto keeps PNG when the original is PNG so transparency stays. GIF converts to PNG. Other files become JPEG. PNG ignores the quality slider because the canvas writes it lossless.

Widths that match the presets.

  • Hero or banner. 600px wide, or 1200px for the retina hero preset.
  • Product. 400px wide.
  • Column. 280px wide for two-column layouts.
  • Logo or icon. 200px wide.

The result panel shows original size, new size, dimensions, and percent saved. This page does not upload your files.

Common questions.

What is the best image size for email?
Most email clients display at 600px width, with 1200px for retina images.
What file size should I target?
Aim for under 200KB per image to keep emails fast and reliable.
Which format should I use?
Use JPEG for photos, PNG for transparency, and WebP when clients support it.
Does compression hurt quality?
Moderate compression reduces size with minimal visible changes, especially for email.

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