Convert / PNG to WebP
Convert PNG to WebP Online
Cut screenshots and graphics down by two thirds or more with no visible quality loss, transparency intact. WebP delivers much smaller files for faster websites. Bulk upload supported.
Why Convert PNG to WebP?
Much smaller files
On a typical screenshot WebP lands around 65-77% below the PNG, and its lossless mode gets there without changing a single pixel.
Faster websites
Smaller images mean faster page loads, better Core Web Vitals, and improved Google rankings.
Transparency support
WebP supports alpha transparency just like PNG, so it works for logos and graphics too.
Browser support
WebP is supported by all modern browsers including Chrome, Firefox, Safari, and Edge.
PNG vs WebP, measured
PNG is lossless and universal, and for screenshots and interface graphics it is also enormous. WebP has a lossless mode of its own that keeps every pixel and the transparency, at a fraction of the bytes. This is the pairing where WebP earns its reputation, far more than it does on photographs.
| Measure | PNG | WebP lossless | WebP quality 92 |
|---|---|---|---|
| 1776 x 1690 screenshot, transparent | 195 KB | 45 KB | 69 KB |
| Saving against the PNG | -- | 77% smaller | 65% smaller |
| 8.3 MP photograph | 11.9 MB | 6.9 MB | 1.0 MB |
| Every pixel identical | Yes | Yes | No |
| Transparency | Yes | Yes | Yes |
| Animation | No | Yes | Yes |
Screenshot figures measured on this site's own interface capture, transparency included; the photograph is one 3840 x 2160 image encoded into each format from a single decoded master. Converting in your browser picks the mode from the image itself: a screenshot or graphic gets quality 92, the last column, and a photograph gets quality 80, which lands below the figure shown. Flat interface colour is what WebP compresses best, so expect results nearer the screenshot row for screenshots and nearer the photograph row for photos.
Questions
What is WebP?
WebP is a modern image format developed by Google. It provides superior lossless and lossy compression for images on the web.
Does WebP support transparency?
Yes. WebP supports alpha channel transparency, making it a direct replacement for PNG in most use cases.
Will my images look different?
No. The conversion preserves visual quality. The difference is only in file size.
Can I convert multiple PNG files at once?
Yes. Upload in bulk and download all converted files individually or as a ZIP.
This one never leaves your device
Your browser does this conversion itself, with no upload and nothing counted against the daily limit. Close the tab mid-way and the file was never anywhere but your machine.
What the privacy policy saysFurther reading
Explainer9 minWhat a converter keeps, strips, and quietly rewritesEvery image carries a second file inside it: location, camera, colour space, which way is up. Conversion treats each one differently, and only one of them is guesswork.Explainer8 minPNG compression is lossless, so why does compressing a PNG lose somethingTwo different operations share one button. One rearranges bytes and changes nothing. The other throws away colours, and on a photograph it barely saves anything either.Optimize your images
Convert PNG to WebP and speed up your website today.