JPG vs PNG vs WebP — Which Image Format Should You Use?
A clear comparison of the three most common image formats and when to use each one for photos, graphics, and the web.
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The Three Main Image Formats
Most images on the web are stored in one of three formats: JPG, PNG, or WebP. Each has different strengths, and choosing the right one affects file size, quality, and compatibility.
JPG (JPEG)
Best for: Photographs and complex images with many colours
JPG uses lossy compression — it permanently discards some image data to achieve smaller files. The loss is usually invisible at quality settings above 70%, but it accumulates if you save and re-save a JPG multiple times.
| Pros | Cons |
|---|---|
| Very small file sizes | Lossy — quality degrades with each save |
| Universal support | No transparency |
| Great for photos | Not ideal for text or line art |
Use JPG for: Photos, product images, social media, email attachments.
PNG
Best for: Graphics, screenshots, logos, images with text, transparent backgrounds
PNG uses lossless compression — every pixel is preserved exactly. This makes PNGs larger than JPGs but ensures no quality loss. PNG also supports transparency (alpha channel), making it essential for logos and UI elements.
| Pros | Cons |
|---|---|
| Lossless — no quality loss | Larger file sizes than JPG |
| Supports transparency | Not ideal for photos |
| Sharp text and lines |
Use PNG for: Logos, icons, screenshots, designs with text, images needing transparency.
WebP
Best for: Web images where you want the best of both worlds
WebP is a modern format developed by Google that supports both lossy and lossless compression, plus transparency. At the same quality, WebP files are typically 25–35% smaller than equivalent JPGs.
| Pros | Cons |
|---|---|
| Smaller than JPG and PNG | Not all software opens WebP natively |
| Supports transparency | Older browsers (IE 11) don't support it |
| Both lossy and lossless |
Use WebP for: Website images, any context where you can verify browser/software support.
Quick Decision Guide
- Sharing a photo? → JPG
- Logo or graphic with transparency? → PNG
- Uploading to a website? → WebP (with JPG fallback)
- Screenshot? → PNG
- Social media? → JPG or WebP
Converting Between Formats
Use the Kinsutools Image Converter to switch between JPG, PNG, and WebP instantly in your browser — no software needed.
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