JPG to PNG Converter Online Free

How to convert JPG to PNG

1. Drop in one or more JPG files. Batches are fine.
2. Press Convert.
3. Download each PNG, or take them all as a ZIP.

What changes when you convert

JPG and PNG solve different problems. JPG uses lossy compression: it discards image data that the eye is unlikely to notice, which is why photographs compress so well. PNG is lossless: every pixel is preserved exactly, and it supports transparency, which JPG cannot represent at all.

Converting to PNG stops any further degradation. Each time a JPG is edited and re-saved, it is compressed again and loses a little more. Do that a dozen times and the artefacts become obvious. Save as PNG and the file stops decaying, which is why PNG is the sensible working format while you are still making changes.

What conversion cannot do is undo damage already done. If the original JPG has compression artefacts around the edges of text, those artefacts are now part of the image, and PNG will preserve them perfectly.

Expect a larger file

PNG files are usually two to five times bigger than the JPG they came from, because lossless compression simply cannot match lossy compression on photographic content. That is the trade you are making. For logos, screenshots and line art the gap narrows sharply, because those have large areas of flat colour, which is exactly what PNG compresses well.

Frequently asked questions

Will converting improve the quality?

No. It preserves the quality you have; it cannot recover what the JPG already discarded.

Will my image gain a transparent background?

No. PNG supports transparency, but a converted JPG has no transparency to restore, so the background stays exactly as it was. Removing a background is a separate editing job.

Can I convert many at once?

Yes. Add as many as you like and download the batch as a ZIP.

Are files uploaded?

No. Conversion happens in your browser.