Convert PNG to WEBP
Drop the PNG and download it as WEBP, transparency intact and much lighter.
Drop an image here
or
PNG, JPG, WEBP, HEIC, AVIF, JXL, GIF, BMP, TIFF and SVG · up to 20 MB
How much you save, and what survives
Converting PNG to WEBP is the most direct optimisation you can apply to a website. The image looks the same, keeps its transparency, and the file drops enough to show up in load time and in Core Web Vitals, which are a ranking factor.
What you save depends on what the PNG has inside it:
- A photograph saved as PNG: the saving is dramatic, 80% or more. PNG is the worst possible container for a photo and nearly any alternative wins.
- A logo or flat illustration: 20–40%. PNG already compresses this kind of image well, so the margin is smaller but still worth taking.
- An icon of a few kilobytes: essentially nothing. Not worth the bother.
Lossy or lossless
WEBP supports both, and choosing correctly is half the result:
Lossless keeps every pixel exactly as the PNG had it and still produces a smaller file. That's what you want for logotypes, icons, screenshots and anything with text or fine lines, where lossy compression leaves visible halos around the edges.
Lossy discards detail the eye can't resolve and saves a great deal more. That's what you want for photographs, where there are no hard edges to ruin.
Keep the original
WEBP is a publishing format, not an archival one. Support outside the browser is still uneven, and if you ever need to edit the image again you'll want to start from the PNG rather than from an already-compressed version. Convert when you publish and keep the original wherever it lives.
Common questions
- How much will I save?
- It depends heavily on the image. For photographs saved as PNG the saving is enormous, 80% or more. For logos and flat illustrations, where PNG already compresses well, expect 20–40%. On very small icons you sometimes gain nothing at all.
- Do all browsers support it?
- Yes. Chrome, Firefox, Edge, Safari and the mobile browsers have supported WEBP since 2020. Outside the browser it's a different story, which is why WEBP is a format for publishing rather than archiving.
- Is transparency preserved?
- Yes, WEBP has an alpha channel. That's its big advantage over JPG and the reason it works for logos and cut-out products, not just photos.
- Should I tick lossless?
- For logos, icons, screenshots and anything with text or hard edges, yes: it keeps every pixel and still comes out smaller than the PNG. For photographs, no: lossy saves far more and the difference isn't visible.
- Is it worth it if my PNG is already small?
- Below a few kilobytes, no. The saving in absolute terms is negligible and you've added another format to maintain. Where WEBP earns its place is on the large images of a page.