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Compress images for email

Corporate inboxes still cap attachments. Drop quality slightly or convert photos to JPEG/WebP so threads deliver reliably—preview size before you attach.

  • Smaller attachments
  • No signup
  • JPG · PNG · WebP · BMP
  • Instant download

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Mailbox realities

Recipients on mobile mail apps appreciate lighter downloads. Aim far below your provider’s ceiling so forwarding chains do not bounce.

  • Newsletter width: often 600px—resize before compressing
  • Signatures: aim under 100–200 KB when possible

Provider limits

Gmail, Outlook, and corporate gateways enforce different total message sizes. Compressing each image to under 500 KB–1 MB leaves room for text and PDFs in the same thread.

Inline vs attachment

Heavier inline images still count toward bandwidth on some clients. Compression helps whether you attach files or paste into the body.

Retina displays

You can export at 2× width for sharpness, then compress aggressively. Balance crisp text in screenshots with total bytes so the message still delivers on slow networks.

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Same tool as Image compress—bookmark toolit for quick browser utilities.

Frequently asked questions

What image size is safe for email attachments?
Many providers suggest keeping total message size under roughly 10–25 MB; individual images are safer under 1 MB and often under 500 KB for signatures and inline images.
Should I resize or only compress for email?
Do both when possible: match width to your template (e.g. 600px for newsletters) then compress to JPEG or WebP.
Does this tool upload my email images?
No. Files stay on your device.

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