JPG to PNG Converter
Convert JPG to lossless PNG in bulk, with an honest note on what it can and cannot do.
Drop JPG images here
as many as you like
Files are processed on this device. Nothing is uploaded.
How to use JPG to PNG Converter
- Add one or more JPG files.
- Select Convert to PNG.
- Download the PNG files individually or as a ZIP.
How it works
The PNG is a pixel-for-pixel copy of what the JPG shows, stored without further loss. That is useful when a program or upload form only accepts PNG, or when you are going to edit and re-save a picture several times: every JPG re-save loses a little more detail, while PNG does not degrade.
Two things converting does not do. It does not restore quality: the detail the JPG discarded is gone, and existing compression artefacts are preserved faithfully. And it does not make the background transparent: a JPG has no transparency, and removing a background means deciding which pixels belong to the subject, a different operation that this converter does not perform.
Expect a larger file. A photo saved as PNG is commonly 3–8 times the size of the JPG, because PNG compression suits flat graphics, not photographs. The conversion is done by your browser on your own device. Your photos are not uploaded, so there is no queue, no file-count limit and no copy kept anywhere.
Example
A 900 KB JPG photo (3000 × 2000) becomes a PNG of roughly 6 MB showing exactly the same pixels.
Frequently asked questions
Will converting JPG to PNG make the background transparent?
No. The background stays as it is. Making it transparent requires background removal, which is not part of a format conversion.
Does JPG to PNG improve quality?
No. It stops further loss from re-saving, but cannot bring back detail the JPG already discarded.
Why is the PNG so much bigger?
PNG is lossless and inefficient for photographs. If you need a smaller lossless-looking file, WebP is a better target.
When should I use PNG instead of JPG?
For screenshots, logos, diagrams and anything with text or sharp edges, and for images you will edit repeatedly. Use JPG or WebP for photos you only need to view or share.
Limitations
- Does not remove backgrounds or add transparency.
- Does not undo JPG compression artefacts.
- PNG files of photos are large.
- Metadata is not carried over.
Last reviewed November 9, 2026. How we build and test tools.