How to convert JPG to PNG
- Drop a
.jpgor.jpegfile into the box above, choose one, or paste an image. - PNG is already selected. There's no quality setting: PNG keeps every pixel.
- Select Download to save the PNG.
What it won't do
Converting can't undo JPG compression: blockiness, color banding or soft detail stay exactly as they are, just in a bigger file. If you only need a smaller or more compatible photo, keep the JPG, or compress it instead.
How it works
The JPG is decoded once and its pixels are written into a PNG exactly as they are, so nothing further is lost from here on. The PNG is then run through OxiPNG at level 2, which tries different filters and compression settings to make the file smaller without changing a single pixel. Because PNG keeps everything JPG had already blurred or blocked, the file is usually several times bigger than the JPG it came from. EXIF data, including location, isn't copied across.
Common uses
- An upload form only accepts PNG. Some design tools, app stores and print services ask for PNG files. Convert the JPG and upload the PNG copy instead.
- Editing a photo many times. Each time a JPG is saved it loses a little more quality. Convert to PNG before a long edit, and re-saving no longer makes it worse.
- Cutting out the background. JPG can't store transparency. Start from a PNG so the cut-out stays transparent when you save it from your editor.