TOOLPNG vs JPG vs WebP: Which Image Format Should You Use?
Use PNG for graphics, logos and anything needing transparency; use JPG for photographs where small size matters; and use WebP on the web for the smallest files at the same quality. Each format compresses differently, and picking the right one keeps images sharp while pages load fast. Here's how they compare and how to choose.
Key takeaways
- PNG — lossless, supports transparency; best for graphics and screenshots.
- JPG — lossy, tiny photo files; no transparency.
- WebP — smaller than both at similar quality; best for the web.
- Switch any image between them with the image converter.
The quick comparison
| Format | Compression | Transparency | Best for |
|---|---|---|---|
| PNG | Lossless | Yes | Logos, icons, graphics, screenshots |
| JPG | Lossy | No | Photographs, complex images |
| WebP | Both | Yes | Web images where speed matters |
PNG — lossless and transparent
PNG keeps every pixel exactly as it was, so it never loses quality no matter how many times you save it. It also supports transparency (an alpha channel). That makes it ideal for logos, icons, line art, and screenshots with text and sharp edges. The downside: photos saved as PNG are large.
JPG — small photos, some quality traded
JPG uses lossy compression that throws away detail your eye barely notices, shrinking photographs dramatically. It's the right choice for photos and richly coloured images. But it has no transparency, and re-saving a JPG repeatedly slowly degrades it, so keep an original.
WebP — the modern web all-rounder
WebP does what PNG and JPG do, but smaller. It offers both lossless and lossy modes plus transparency, typically producing files 25–35% smaller than JPG and much smaller than PNG at similar quality. Every current browser supports it, which is why it's the go-to for fast websites.
How to choose, fast
- Has transparency or sharp text/edges? → PNG (or WebP).
- A photograph you want small? → JPG (or WebP).
- Building a website and want speed? → WebP.
Whatever you pick, shrink the file further with the image compressor or change the dimensions with the image resizer.
Frequently asked questions
Is PNG or JPG better?
Neither is universally better. PNG is lossless and supports transparency, so it's best for logos, graphics and screenshots. JPG uses lossy compression that makes photos much smaller, so it's best for photographs where a tiny quality loss is invisible.
Should I use WebP?
For websites, usually yes. WebP produces smaller files than both PNG and JPG at similar quality and supports transparency, which speeds up page loads. Every modern browser supports it, though very old software may not.
Which format supports transparency?
PNG and WebP support transparency. JPG does not — transparent areas become white when you save as JPG.
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