What image size is best for email?
Staying under 1MB per image is typically safer for inbox compatibility and send speed.
reduce image size for email
Large attachments get blocked or bounce. Resize Relay helps you compress images to email-friendly sizes quickly.
Staying under 1MB per image is typically safer for inbox compatibility and send speed.
Yes. Phone photos are often large, and this tool compresses them for easy attachment.
Usually yes for normal viewing, especially when quality settings are balanced.
Application systems with strict image-size caps.
Portals that reject uploads when the format or dimensions are off.
Repeat workflows where you want a faster path from upload to acceptance.
Start with reduce image size for email as the main requirement, then adjust dimensions only if the target is still too large.
Use JPEG or WebP first when a portal rejects larger files or strict PNG exports fail to compress enough.
Test the final file before submission so you can confirm the upload system accepts the size, format, and dimensions.
The original photo may be much larger than the upload limit, so compression alone is not always enough.
Many systems require both file size and pixel dimensions, not just one of them.
Lossless formats like PNG often stay too heavy for strict upload caps compared with JPEG or WebP.