JPG to PNG Converter — Free, No Upload
Convert a JPG into a lossless PNG.
Drop a file here
or click to choose a file
Runs on your device Your file is processed by your own browser and is never uploaded to a server.
Short answer
JPG files can be converted to PNG in a browser without uploading them. The JPEG is decoded and the exact resulting pixels are stored losslessly as PNG, so no further quality is lost — though the detail JPEG already discarded cannot be recovered. PNG files of photographs are typically several times larger than the JPG they came from.
At a glance
| Accepts | JPG (JPEG) |
|---|---|
| Produces | PNG (lossless) |
| Processing | In your browser |
| Price | Free, no limits |
| Account | Not required |
Converting to PNG is worth doing for a specific reason: you are about to edit the image repeatedly, or a tool you are using accepts nothing else. PNG is lossless, so each save afterwards preserves the pixels exactly, where each JPEG save would degrade them a little further.
It is worth being clear about what this does not do. Converting cannot undo the compression already baked into the JPEG — the artefacts are part of the picture now. The output is simply a faithful, losslessly stored copy of what the JPEG contained.
How to use it
- 1
Add the JPG
Drop in a .jpg or .jpeg file.
- 2
Convert
The image is decoded and re-encoded as PNG on your device.
- 3
Download the PNG
Save the lossless file.
Frequently asked questions
Will converting to PNG improve the quality?
No. The compression artefacts a JPEG already contains are part of its pixels and cannot be removed by changing format. PNG simply stops any further loss from happening.
Why is the PNG so much larger than the JPG?
PNG stores every pixel exactly, while JPEG discards detail the eye is unlikely to miss. For photographs, a PNG being three to ten times larger is normal and expected.
Will the PNG have transparency?
No. A JPEG has no transparency to carry over, so the PNG is fully opaque. Transparency has to be added in an image editor.
When should I convert JPG to PNG?
Before repeated editing and re-saving, or when a tool or platform requires PNG. For publishing on the web, keeping the JPG — or converting to WebP — gives a far smaller file.