JPEG vs WebP vs AVIF: Which Image Format Should You Export?

Bottom line: JPEG remains the safest interchange format for photographs because almost every device, CMS and old browser can read it. It is lossy, lacks transparency and suffers generation loss when repeatedly edited and exported, but that universality is valuable for receipts, upload forms and archives intended for unknown software.

WebP is the practical modern default for the web. It supports lossy and lossless encoding, transparency and animation. Most browsers have supported it for years, and it often beats JPEG by 25–35% at a similar visual quality. The format is also relatively fast to encode, making it suitable for interactive optimization tools.

AVIF pushes compression further, especially for noisy photographs, gradients and complex textures. It can also represent high-dynamic-range content. The tradeoff is CPU time: high-quality AVIF encoding takes longer and older image viewers may not support it. Use AVIF when bytes are expensive, then provide a JPEG or WebP fallback if compatibility is critical.

Do not use these formats for every graphic. Screenshots with sharp text, logos and interface diagrams are often smaller as PNG because a lossless palette preserves edges without spending bits on ringing artifacts. Convert a screenshot to JPEG and you may see blurred text and a larger file.

The best workflow is source-first: keep a lossless master, export WebP for modern pages, add AVIF for supported browsers when encoding time is acceptable, and keep JPEG only where legacy uploads demand it. Compare bytes after setting a visible quality target rather than blindly choosing the smallest file.