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PNG to WebP converter

The web-asset diet: huge size cuts with transparency intact — free, batch-friendly, in your browser.

Drop images here

or click to browse — pasting a copied image works too

Drop a PNG — up to 20 files

Why PNG to WebP is the web-asset upgrade

PNGs accumulate on websites for good reasons — screenshots in docs, logos with transparency, UI illustrations — and then quietly dominate the page weight, because PNG is the heaviest mainstream format. WebP solves exactly this case: it compresses like JPEG and keeps the alpha channel, so it replaces PNG without redesigning anything. The typical documentation screenshot drops from 800 KB to under 100 KB.

Conversion runs in your browser using its native WebP encoder. Drop up to 20 PNGs, choose a quality (90% is a safe default; 80% for thumbnails), and take the ZIP. Transparent regions come through untouched — check a logo against a dark background and it behaves exactly like the PNG did.

The PNG → JPG vs PNG → WebP decision

Both shrink PNGs. PNG to JPG wins on universality — JPG opens absolutely everywhere, but transparency is flattened to white. PNG to WebP wins on the web — better compression at the same quality, transparency preserved, supported by every current browser. Rule of thumb: converting for a website you run → WebP; converting to upload or share a file → JPG.

Quality settings that work

  • 90%: screenshots with text, logos, anything with sharp edges — crisp and still a fraction of the PNG.
  • 80–85%: photos and illustrations in content — the everyday setting.
  • 70%: thumbnails and grid images, where WebP's graceful degradation outclasses JPG at the same size.

Frequently asked questions

Does WebP keep PNG transparency?
Yes — this is the key difference from converting PNG to JPG. WebP supports an alpha channel, so logos, UI elements and cut-out images keep their transparent backgrounds at a fraction of the PNG size.
How much smaller does a PNG get as WebP?
Screenshots and photos saved as PNG typically shrink 60–90%. Flat graphics with few colors shrink less dramatically but still meaningfully. The before/after readout shows the exact saving per file.
Is the conversion lossless?
This tool uses lossy WebP at the quality you choose, which is what gives the large size reductions. At 85–90% the difference from the PNG is effectively invisible for screenshots and photos.
When should I stay with PNG?
When the file leaves the web: uploads to forms and marketplaces, print workflows, and software that requires PNG input. WebP is a website format — for assets on pages you control, it's strictly better; elsewhere PNG remains the safe choice.
Can I convert a batch for my website?
Drop up to 20 PNGs, set one quality, and download the WebP set as a ZIP — names are preserved, so swapping the files into an assets folder is a find-and-replace of extensions.

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