Compress Image for Email
Reduce image file size so it sends quickly as an email attachment. Gmail and Outlook work best with images under 1MB. Free, instant, no upload to any server.
Drop image here or tap to upload
JPG, PNG, WebP, HEIC — up to 20 MB
What Size Should Images Be for Email?
Email providers recommend keeping individual attachments under 1MB and total email size under 10MB. For inline images in newsletters or signatures, under 200KB loads fastest. Our tool compresses to 500KB by default - the sweet spot for email.
Email Size Limits by Provider
- Gmail - 25MB total attachment limit per email
- Outlook / Hotmail - 20MB total limit
- Yahoo Mail - 25MB total limit
- Corporate email servers - often 5–10MB limit
Frequently Asked Questions
Why does Gmail block large images?
Emails over 25MB are rejected by Gmail's server. Even smaller emails with many large images load slowly for the recipient on mobile data. Compressing to under 500KB per image is best practice.
Should I send images as JPG or PNG in email?
JPG is smaller and recommended for photos. Use PNG only for screenshots, logos, or graphics that need transparency or sharp text.