WebP vs JPG vs PNG — Which Format Should You Use?
Three formats dominate web and general image use. Here's a practical, no-fluff comparison to help you pick the right one.
Side-by-Side Comparison
| Feature | JPG | PNG | WebP |
|---|---|---|---|
| Compression | Lossy | Lossless | Both |
| Transparency | No | Yes | Yes |
| File size (photo) | Small | Very large | Smallest |
| Browser support | Universal | Universal | 97%+ |
| Email support | Universal | Universal | Limited |
| Best for | Photos | Logos, graphics | Web images |
JPG — The Universal Photo Format
JPG (JPEG) has been the dominant photo format since the 1990s. Its lossy compression discards some image data to achieve small file sizes — and at 80–90% quality, the difference from the original is invisible to most people.
Use JPG for: Photos, social media images, email attachments, anywhere compatibility matters
Don't use JPG for: Logos, screenshots with text, images needing transparency, images you'll edit repeatedly
PNG — The Lossless Standard
PNG uses lossless compression — every pixel is stored exactly. This makes it ideal for graphics, logos, and anything with text, but the file sizes for photos are enormous.
Use PNG for: Logos and icons with transparent backgrounds, screenshots, graphics with text, images being edited
Don't use PNG for: Photos on websites (file sizes are 3–10x larger than JPG)
WebP — The Modern Web Format
WebP was developed by Google specifically for the web. It achieves 25–35% smaller files than JPG at the same quality, supports transparency like PNG, and is supported in all modern browsers.
Use WebP for: All images on websites and web apps, replacing both JPG and PNG
Don't use WebP for: Email (spotty client support), software that doesn't support it yet
File Size Comparison (Real-World Example)
A typical 12MP smartphone photo (4000 × 3000px) at equivalent quality:
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Frequently Asked Questions
Is WebP better than JPG?
For web use, yes. WebP produces 25–35% smaller files at the same visual quality and supports transparency. For email or broad software compatibility, JPG is safer.
Should I use PNG or JPG for photos?
JPG for photos. PNG is lossless and produces very large files for photographic content. JPG's lossy compression is perfectly suited for photos where file size matters.
Does WebP have better quality than PNG?
PNG is lossless — it preserves 100% of original quality. WebP can be either lossless or lossy. For maximum quality, both are excellent choices.
Sources & Further Reading
- → Google Developers — WebP compression study: Google's original research showing WebP is 25-34% smaller than JPEG at equivalent quality.
- → Can I Use — WebP browser support: Current global browser support — WebP is supported in 97%+ of browsers as of 2025.
- → MDN Web Docs — Image formats: Technical comparison of JPEG, PNG, WebP, AVIF, and GIF formats.
- → Google web.dev — Serve images in WebP: Practical guidance on using WebP with fallbacks for older browsers.