JPG: the one for photos
JPG compresses by discarding details the eye barely notices, which is why photos weigh little. The opposite happens with thin line drawings, text or screenshots: blotches appear around the edges. JPG does not support transparency.
PNG: the one for graphics
PNG does not discard information: it keeps edges sharp and supports a transparent background, which makes it the favorite for logos, icons, screenshots and drawings. For photos, however, it weighs much more than JPG.
WebP: the lightweight one for websites
WebP is a modern format that achieves smaller files than JPG and PNG at similar quality, and it also supports transparency. All current browsers read it, although some older programs, forms or services still do not accept it.
Which to choose for each case
- Photo for a form or to send by email: JPG.
- Logo, icon or screenshot: PNG.
- Image with a transparent background: PNG or WebP.
- Image for your website, where speed matters: WebP.
- File that any program must open without problems: JPG.
How to switch from one format to another
- Open the “Image Converter” tool (or one of its direct versions, such as PNG to JPG).
- Choose or drop your images.
- Select the output format and, if you want, the quality.
- Tap Convert and download the results, one by one or in a ZIP.
A common myth
Converting an image does not improve its quality. Turning a JPG into a PNG gives a larger file, but does not recover the details the JPG had already lost. And turning a transparent PNG into a JPG replaces the transparent areas with white.
Frequently asked questions
Which format weighs the least?
For photos, WebP is usually the lightest, followed by JPG. PNG is the heaviest for photos.
Can I convert many images at once?
Yes, the tool accepts several at a time and gives them to you in a ZIP.
Is quality lost when converting to JPG or WebP?
A little, since both discard details; at 90% quality the difference is hard to notice.