PNG files — especially screenshots and exported graphics — are often many times larger than they need to be. Converting to JPG typically cuts the size by 80% or more with no visible difference for photographic content.
Adjust quality to trade size against fidelity, and set a hard size cap if you need the result under a specific limit.
Note that JPG has no transparency: any transparent area in the PNG becomes solid white. If you need transparency, keep the file as PNG or convert to WebP instead.
How to use it
Add your PNG images, one or many.
Optionally set a maximum file size if you are uploading to a form.
Press Convert — transparent areas are filled with white, as JPG has no transparency.
Download the JPGs, as a ZIP for a batch.
Supported formats and limits
Input
PNG images
Output
JPG
Typical saving
Large for photographs; small or negative for flat graphics
Transparency
Replaced with a white background
Where it runs
In your browser; nothing uploaded
Not for: Logos and screenshots with sharp edges — JPG blurs them slightly; keep those as PNG or convert to WebP.
Frequently asked questions
Are my files uploaded to a server?
No. This conversion runs entirely inside your browser using your own device’s processing power. The file never leaves your computer or phone, which is why it also works when your connection drops.
What happens to transparent backgrounds?
They become white, because JPG cannot store transparency. Use WebP if you need a smaller file that keeps the transparent background.
My JPG came out larger than the PNG — why?
That happens with flat graphics and text screenshots, which PNG stores very efficiently. For those, PNG is genuinely the better format and you should keep the original.