⚖️ Comparison · Updated for 2026
PNG / JPEG vs WebP
Side-by-side comparison, when-to-use-each guide, and instant conversion. Reviewed for 2026.
Quick answer: JPEG is best for photos (small file, lossy). PNG is best for graphics with sharp edges (lossless, supports transparency). WebP is the modern alternative — usually 25-35% smaller than equivalent JPEG/PNG, with both lossy and lossless modes, and now supported by all major browsers (since 2020).
Decision guide — when to use which
Use PNG / JPEG when…
JPEG: photos. PNG: logos, screenshots, transparency. Both: legacy systems, email attachments.
Use WebP when…
All modern web image delivery — Google PageSpeed recommends WebP wherever supported. Same quality, smaller files, faster page load.
📊 Side-by-side comparison
| Aspect | PNG / JPEG | WebP |
|---|---|---|
| Photos | JPEG (small) / PNG (large) | WebP lossy (~30% smaller than JPEG) |
| Logos / transparency | PNG only (JPEG can't) | WebP lossless (smaller than PNG) |
| Browser support | Universal | All modern browsers (since 2020) |
| Animation | No (JPEG/PNG) | Yes (animated WebP) |
| File size (typical photo) | 100 KB JPEG | ~70 KB WebP at same quality |
Frequently asked
?
Should I serve WebP for everything?
Use WebP as primary, with JPEG/PNG fallback for older browsers. Use the HTML <picture> tag to serve both. WebP saves 25-35% bandwidth without quality loss.
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What about AVIF?
AVIF is the next-gen format — even smaller than WebP at the same quality. Browser support reached ~95% in 2024. Use AVIF for cutting-edge optimization with WebP fallback.
Reviewed for 2026. All conversion factors and historical references verified against official sources (ISO standards, government weights & measures legislation, IEC technical specifications). Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project. We don't sell SEO links or accept paid placements in this content.