MinifyPic

JPG to PNG

Convert JPG photos into lossless PNG images — the format to use when the picture is heading into an editor and must not degrade any further.

FreeNo uploadBatch
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How it works

A compact workflow from input to download.

1

Add your JPG files

Drag and drop one or many JPG images onto the drop zone, or click to browse your device. Batch conversion is supported.

2

Pick your quality

Adjust the quality slider if you want a smaller file or a sharper PNG. The default is tuned to look identical to the original at a fraction of the size.

3

Download the PNG

Save each converted image individually, or download everything at once as a ZIP archive. Nothing is uploaded at any point.

Frequently asked questions

Does converting to PNG improve my JPG's quality?
No. This is the most common misconception about this conversion. Detail that JPG compression discarded is permanently gone, and no format can invent it back. What PNG does is guarantee that no additional quality is lost from here on.
Then why convert JPG to PNG at all?
Two solid reasons. First, you are about to edit the image repeatedly and want to avoid generational loss from re-saving as JPG each time. Second, something you are using demands a PNG — plenty of design tools, icon pipelines, game engines and upload forms accept nothing else.
Will the PNG be bigger?
Almost certainly, and often by a lot. A photo that is 500 KB as a JPG can easily become several megabytes as a PNG, because lossless compression has to keep every pixel it is handed, including all the compression artefacts baked in by the original JPG.
Does the PNG get a transparent background?
No. The JPG has no transparency to preserve, so the PNG is fully opaque. Converting the format does not remove a background — that needs a dedicated background removal tool.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using JavaScript and the Canvas API. Your files never leave your device, are never uploaded, and are never stored — which also means the tool keeps working on files you would not be comfortable sending to a stranger's server.

Conversion cannot undo compression

It is worth being blunt about this, because a lot of people arrive hoping otherwise. When a photo is saved as a JPG, the encoder analyses the image, decides which fine details the human eye is least likely to miss, and throws them away permanently to make the file smaller. That decision is irreversible. Converting the result to PNG stores the surviving pixels with perfect fidelity — including, faithfully, every artefact and every bit of blockiness the JPG introduced. The PNG is a perfect copy of a lossy image, not a restored original. If you need a genuinely high-quality version, the only route is back to the original source file.

The real use case: stopping the bleeding

Where this conversion genuinely earns its place is at the start of an editing session. Suppose you open a JPG, crop it, adjust the colour, save, reopen it the next day, add some text, and save again. Each of those saves re-runs JPG compression over an already-compressed image, and the artefacts compound — a process photographers call generational loss. After several rounds it is plainly visible. Convert to PNG once, at the beginning, and every subsequent save is lossless: the image will never get any worse than it is right now. Then export back to JPG at the very end, once, when you publish.

Related tools

Continue the workflow with adjacent tools.

HEIC→JPG
Convert iPhone HEIC photos to universal JPG
HEIC→PNG
Convert HEIC photos to lossless PNG images
WebP→JPG
Convert WebP images to widely-supported JPG