JPG to PNG

What this converter does

Select a JPG or JPEG file and the tool decodes it in your browser, draws it onto a canvas and exports the pixels as a PNG named converted.png. No upload takes place, and the output has the same dimensions as the source.

Why convert JPG to PNG

• Lossless editing. PNG does not discard data on re-save, so you can edit and save repeatedly without the extra quality loss that JPEG introduces each time.
• Required format. Some design tools, app stores, game engines and documents ask for PNG.
• Sharp graphics. Screenshots and diagrams saved as JPEG often show faint noise around text and edges. Converting does not remove that, but it stops it getting worse.

What to expect

• The file usually gets bigger. A photograph stored as JPEG is already compressed. PNG stores every pixel without that loss, so the PNG can be several times larger.
• Quality does not improve. Detail already lost to JPEG compression cannot be restored by saving as PNG. The conversion preserves what is there; it does not enhance it.
• No transparency appears. A JPEG has no transparent areas, so the PNG will be fully opaque. To make a background transparent you need an editor that can select and remove it.
• Metadata such as EXIF is not carried over, since the image is re-encoded from the canvas.

When not to convert

For photographs you only want to share or upload, keep the JPEG. It is smaller and looks the same on screen. Convert to PNG when you need a lossless working copy, a specific format, or you plan further edits.

Troubleshooting

• "Could not decode this image" means your browser cannot read the file. Check that it is a genuine JPEG and not a renamed HEIC or other format.
• Large images consume memory while converting; on a phone, try a smaller version.
• Colours can look slightly different if the original has an unusual colour profile, because browsers draw to the standard sRGB space.

For the opposite conversion, to reduce file size, use the PNG to JPG converter.