Why convert JPG to PNG?

PNG is ideal when you need lossless quality for further editing, transparent backgrounds, or pixel-perfect graphics. Converting JPG to PNG prevents further quality degradation from repeated editing and re-saving.

Will the file size increase?

Yes. PNG files are typically larger than JPG files because PNG uses lossless compression. For photographs, expect the file to be 3–5 times larger.

Can I convert multiple JPG files at once?

Yes. Drop or select as many JPG files as you need. FileKit processes them all in your browser and lets you download individually or as a ZIP archive.

Does the PNG output support transparency?

The converted PNG is technically capable of transparency, but since JPG does not have an alpha channel, the output will have a solid background matching the original image.

Is there a file size limit?

Each file can be up to 50 MB. Since processing happens entirely in your browser, very large files may take a few extra seconds depending on your device.

Will my images be uploaded to a server?

No. FileKit processes everything locally in your browser using the Canvas API. Your images stay on your device — nothing is uploaded.

Which browsers support this tool?

All modern browsers — Chrome, Firefox, Safari, and Edge — fully support this tool on both desktop and mobile devices.

JPG to PNG Converter — Free, No Upload Required | FileKit

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How JPG to PNG conversion works

JPG is a lossy format optimized for photographs, while PNG uses lossless compression that preserves every pixel exactly. FileKit decodes each JPG using your browser's built-in image engine, then re-encodes the pixels as a PNG. The conversion preserves the current quality of the JPG (though it cannot recover detail lost during JPG compression). PNG files will be larger than the original JPGs, but they will not degrade further with future edits. Everything runs locally in your browser.

How to Convert JPG to PNG

1
Upload JPG images
Drag and drop one or more .jpg or .jpeg files into the upload area. You can also click to browse and select files from your device.
2
Convert automatically
Each JPG is decoded and re-encoded as a lossless PNG in your browser. No quality slider is needed because PNG compression is always lossless.
3
Download converted PNGs
Download files individually or grab all of them at once as a ZIP archive. The PNG files are ready for editing or further use.

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