The Short Answer
| Use case | Best format |
|---|---|
| Photos, complex images | JPG |
| Logos, screenshots, text, transparency | PNG |
| Websites (smaller files, same quality) | WEBP |
JPG — The Everyday Photo Format
JPG compresses by discarding some image detail your eye is unlikely to notice, which keeps file sizes small. That makes it great for photographs, but it struggles with sharp edges and flat colors — text or simple graphics can come out looking slightly blurry or blocky around the edges.
PNG — When You Need Perfect Edges or Transparency
PNG doesn't throw away any detail, so lines stay sharp and colors stay exact — ideal for logos, screenshots, and diagrams. It also supports transparency, which JPG doesn't. The tradeoff is file size: a PNG of a photo is usually much larger than the same photo as a JPG.
WEBP — The Modern All-Rounder
WEBP was built specifically to beat both JPG and PNG at their own games — it can compress photos more efficiently than JPG, and it supports transparency like PNG, all in a smaller file. The only real downside is that a small number of older programs and devices don't open it — though virtually every modern browser does.
A Quick Real-World Example
Say you're uploading a product photo to your online store. A JPG will load fast and look fine. Converting that same photo to WEBP first will often shrink it further with no visible quality loss — which matters for page speed and, indirectly, for search ranking. If the image has a logo with transparent edges, PNG is still the safer choice unless you've specifically tested WEBP's transparency support with your platform.
How to Convert Between Them
You can convert directly, right in your browser, with no upload: PNG to JPG, JPG to PNG, JPG to WEBP, or PNG to WEBP.
Try it now — nothing is ever uploaded.
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