How much smaller is a JPG than a PNG?

For photos, usually 60–80% smaller. PNG stores every pixel losslessly, which is very inefficient for images with many tones.

What happens to the transparency?

JPG has no transparency, so transparent areas are filled with the background color you pick (white by default).

When should I not convert to JPG?

For logos, screenshots with text or images with sharp edges, JPG compression creates artifacts. Keep PNG or use WebP.

Which quality should I choose?

85–90% looks identical to the original for most photos; 70–80% gives even lighter files.

Are my files uploaded to a server?

No. Everything is processed inside your browser and your files never leave your device. There is no upload, no queue and no temporary storage, so the tool keeps working even if you go offline after the page has loaded.

Yes. There is no sign-up, no watermark and no daily limit. The site is funded by a few unobtrusive ads around the tools, never inside your files.

PNG to JPG

Upload a PNG, choose the quality and a background color for transparent areas, and download a much lighter JPG. The conversion happens in your browser.

Free, no sign-up and no uploads: processing happens in your browser · Updated September 18, 2026

JPG quality90%

Background (replaces transparency)

Lighter photos for sharing

PNG photos are often five to ten times larger than they need to be. JPG makes them easy to email and upload.

Related tools

Go the other way with JPG to PNG or shrink the result further with Compress image.

Related tools

JPG to PNG

Convert JPG images to lossless PNG.

Compress image

Reduce image file size without visible quality loss.

Convert image format

Convert between JPG, PNG, WebP and AVIF instantly.

WebP to JPG

Convert WebP images to JPG.

Frequently asked questions

How much smaller is a JPG than a PNG?: For photos, usually 60–80% smaller. PNG stores every pixel losslessly, which is very inefficient for images with many tones.
What happens to the transparency?: JPG has no transparency, so transparent areas are filled with the background color you pick (white by default).
When should I not convert to JPG?: For logos, screenshots with text or images with sharp edges, JPG compression creates artifacts. Keep PNG or use WebP.
Which quality should I choose?: 85–90% looks identical to the original for most photos; 70–80% gives even lighter files.
Are my files uploaded to a server?: No. Everything is processed inside your browser and your files never leave your device. There is no upload, no queue and no temporary storage, so the tool keeps working even if you go offline after the page has loaded.
Is it really free?: Yes. There is no sign-up, no watermark and no daily limit. The site is funded by a few unobtrusive ads around the tools, never inside your files.