PNG vs JPG
Upload an image to compare real PNG and JPG output sizes and decide whether lossless detail, transparency, or smaller photo files matter most.
Compare your own image
Your image stays in your browser. The comparison uses your browser’s canvas encoder.
Upload an image to compare formats
Waiting for image
Waiting for image
Test PNG and JPG on your image
Test your own image
Compare actual browser-encoded file sizes instead of relying on generic estimates.
Adjustable quality
Change lossy quality and see how each output responds.
Private local processing
The image is decoded and encoded locally in your browser.
PNG vs JPG comparison
| Feature | PNG | JPG |
|---|---|---|
| Compression | Lossless | Lossy |
| Transparency | 예 | 아니요 |
| Best content | Graphics, text, screenshots | Photographs |
| Typical size | Larger for photos | Smaller for photos |
작동 원리
-
1
Upload an image
Choose a photo, screenshot, or design from your device.
-
2
Compare outputs
Adjust quality and review the real encoded sizes.
-
3
Choose and download
Save the format that best fits your use case.
When to use PNG or JPG
Use PNG for logos, interface graphics, screenshots with text, and images requiring transparency. Use JPG for photographs and large continuous-tone images when smaller files matter more than perfect pixel preservation.
Frequently asked questions
Why is PNG larger than JPG for photos?
PNG preserves pixels losslessly, while JPG discards subtle detail to reduce file size.
Which format is better for screenshots?
PNG is usually better for sharp text and interface edges, although WebP can also work well.
Can JPG have a transparent background?
No. Choose PNG or WebP when transparency is required.
PNG vs JPG last reviewed: Jul 16, 2026.