Compress Images for Email
Reduce image file size for email attachments. Stay under size limits and avoid bounced emails.
Drag & drop images here
or click to select files
Max 20 files, 10MB each
Your files never leave your browser. All processing happens locally.
Email attachment best practices
Email attachment limits
| Email Provider | Max Attachment | Recommended |
|---|---|---|
| Gmail | 25MB | Under 10MB |
| Outlook.com | 20MB | Under 10MB |
| Yahoo Mail | 25MB | Under 10MB |
| Corporate (Exchange) | 10-25MB | Under 5MB |
| Safe for all | — | Under 5MB total |
Frequently Asked Questions
What is the Gmail attachment size limit?
Gmail allows attachments up to 25MB total. However, many recipients have smaller limits (10MB is common for corporate email), so aim for under 5MB per image to be safe.
What quality setting should I use for email?
For email, 60-75% quality is usually sufficient. Recipients view images on small screens or embedded in emails where ultra-high quality isn't visible.
Should I resize images before emailing?
Yes. Most email clients display images at 600-800px width maximum. Sending a 4000px image wastes bandwidth and may get blocked by spam filters.
Why do some emails reject my attachments?
Corporate email servers often have strict limits (5-10MB). Some block certain file types. Compress images and consider using cloud links for large files.
Is JPG or PNG better for email?
JPG for photos (smaller file size). PNG only for graphics with text or transparency. Never send uncompressed PNG photos via email.