Convert JPG to WebP

JPG vs WebP: what changes

JPG (JPEG) is a lossy raster format tuned for photographs: it discards detail the eye barely notices to reach small file sizes, but it has no transparency and re-saving repeatedly compounds the quality loss.

WebP is a modern raster format from Google that does both lossy and lossless compression, supports transparency and animation, and runs about 25–34% smaller than JPEG at the same visual quality (per Google's own compression study).

WebP supports transparency, though a JPG has none to carry over — the image simply stays fully opaque. Both formats are lossy, so re-encoding adds a little more compression on top of what's already there; use a high quality setting to keep it negligible. At matching quality WebP typically lands about 25–34% smaller than an equivalent JPEG.

When to convert JPG to WebP

Converting JPG to WebP is one of the highest-impact web-speed wins: the same photo lands roughly 25–34% smaller at matching quality, cutting page load time with no visible difference.

Good to know: Because the source JPG is already lossy, re-encoding loses a little more detail — use a high quality setting and avoid repeatedly re-converting the same image.