For years the image format debate was simple: JPEG for photos, PNG for graphics. But the web has moved on. WebP — developed by Google and supported by every major browser — now offers the best of both worlds: smaller files than JPEG and transparency like PNG. Here is how the three formats compare, when you still need the old guard, and why WebP should be your new default.

JPEG: The Photo Workhorse

JPEG uses lossy compression. It analyses an image and discards visual information that the human eye is unlikely to notice. The result is dramatically smaller files — often 10× smaller than the uncompressed original.

PNG: Lossless with Transparency

PNG uses lossless compression. Every pixel is preserved exactly as it was — no information is ever discarded. PNG also supports an alpha channel for full transparency.

WebP: The Best of Both Worlds

WebP is a modern image format that supports both lossy and lossless compression, transparency, and even animation — all in a single format.

FeatureJPEGPNGWebP
CompressionLossyLosslessBoth
TransparencyNoYesYes
AnimationNoNoYes
Best forLegacy compatibilityLossless archivingEverything on the web
File sizeSmallLargeSmallest

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