Email attachments too large? Compress images to fit within Gmail (25 MB), Outlook (20 MB), Yahoo (25 MB) limits. Reduce file sizes 60-90% while keeping images looking great. Free, instant.
Email Attachment Limits
| Provider | Max Size | Recommended Per Image |
|---|---|---|
| Gmail | 25 MB total | Under 2 MB |
| Outlook | 20 MB total | Under 1.5 MB |
| Yahoo Mail | 25 MB total | Under 2 MB |
| iCloud Mail | 20 MB total | Under 1.5 MB |
How to Compress for Email
1. Upload images — Any format accepted
2. Select "Email optimised" — Best balance of quality and size
3. Compress — 60-90% reduction while maintaining quality
4. Download and attach — Fits within email limits
Best Format for Email
JPG is best for emailing photos — universal support, smallest sizes. Convert if needed:
PNG to JPG — Screenshots to smaller JPG
HEIC to JPG — iPhone photos
WebP to JPG — Web images to universal format
Frequently Asked Questions
How much can I compress for email?
A 5 MB photo compresses to 500 KB-1 MB with no visible quality difference. That's 80-90% reduction.
Will compressed images look bad?
No. At recommended settings, the difference is imperceptible on screens.
iPhone photos too large for email?
Use HEIC to JPG which also compresses during conversion, typically under 1 MB.
Related Tools
Compress Images — General compression
PNG to JPG — Smaller format
HEIC to JPG — iPhone photos
Image Converter — All conversions