Why is my PNG so large?
PNG is lossless, so photographic detail makes the file big. Converting to JPEG or WebP usually shrinks it many times over.
reduce png size
Reduce PNG File Size Online
PNG files are often large because they are lossless. Reduce the PNG by shrinking dimensions, or convert to JPEG or WebP for a much smaller file. Set your target and download in seconds. 100% in your browser - your image never leaves your device.
Direct tool accessRequirement-specific FAQPractical upload guidance
How to use Resize Relay
- 1. Upload your image from device or camera.
- 2. Set a target size in KB/MB and optional dimensions.
- 3. Download your resized file when it matches the requirement.
FAQ
Can I keep transparency while reducing size?
Yes. Convert to WebP, which supports transparency like PNG but produces a much smaller file.
Is the PNG uploaded to a server?
No. The PNG is processed in your browser, so it never leaves your device.
Common situations for this workflow
Shrinking large PNG screenshots or exports for web forms and email.
Cutting page weight where a PNG is far heavier than the same image as WebP.
Meeting an upload cap that a lossless PNG keeps blowing past.
Checklist before you upload
Convert to JPEG or WebP when you do not need PNG transparency - it shrinks the file dramatically.
Keep PNG only when you need a transparent background.
Reduce dimensions first if the PNG is much larger than it needs to be.
Tips to hit the target faster
PNG stays large because it is lossless; for photos, JPEG or WebP is many times smaller at the same look.
WebP keeps transparency like PNG but at a fraction of the size when the destination supports it.
If you must keep PNG, lowering the pixel dimensions is the most reliable way to cut the size.