Why this tool is different
Converting JPG to PNG will not recover detail the JPEG already threw away — nothing can. What it does give you is a lossless container, so repeated editing and saving stops compounding the damage. That is the honest reason to do this, and the reason most tools do not mention.
How it works
- 1
Add one or more JPG files.
- 2
Optionally set a maximum width or height.
- 3
We decode and encode lossless PNG.
- 4
Download individually or as a ZIP.
What to watch out for
Quality is not restored
JPEG compression is one-way. The PNG faithfully preserves the JPEG artefacts already present. It stops further loss; it cannot undo past loss.
The file will get bigger
PNG is lossless, so a photograph often becomes several times larger. That is expected, not a bug.
No transparency appears by magic
The JPG has no alpha channel, so the PNG will be fully opaque. Removing a background is a separate editing job.
Frequently asked questions
Does converting JPG to PNG improve quality?
No. It preserves exactly what is in the JPEG, artefacts included. The benefit is that further edits and saves will not add more loss.
Why is my PNG so much larger?
PNG stores images losslessly. Photographs compress poorly that way, so a 500KB JPG can easily become a 3MB PNG.
When should I actually use PNG?
Screenshots, logos, diagrams, anything with text or sharp edges, and any image you plan to edit repeatedly.
Are my files uploaded to a server?
No. The conversion runs in JavaScript and WebAssembly inside your own browser. Open your devtools, switch to the Network tab and run a conversion — there is no upload request to see. Closing the tab clears the working session.