PNG to WebP
WEBConvert PNG images to WebP online — free, fast and private. Your files never leave your browser. Nothing is uploaded.
Add at least one image to continue.
100% private — images never leave your browser.
What is the PNG to WebP tool?
Convert PNG to WebP right in your browser and make your pages lighter without your images ever being uploaded anywhere. WebP is the format built for the web: it keeps the transparency your PNGs rely on but compresses far harder, so a typical graphic lands around 30% smaller — and photographic PNGs often shrink much more. The converter is free, needs no sign-up, and handles a single file or a bulk batch equally well, on desktop and on your phone.
This page is tuned for the people who actually search for it: developers, bloggers and shop owners cutting page weight for faster loading and better Core Web Vitals. The WebP encoder here is lossy, so a quality slider lets you pick the trade-off — the 90% default is usually indistinguishable from the source while still saving real bytes. Transparency survives the trip untouched, which is what makes PNG to WebP a safer choice than PNG to JPG for logos, icons and UI screenshots.
Because the conversion runs on your own device, there is no upload queue and no server ever sees your files — a real difference from converter sites that push big batches through paid tiers. Convert as many PNGs as you like; multiple results download together as one zip. Every modern browser displays WebP, so the only question left is how much smaller you want your images to be.
How to use the PNG to WebP
- Open the PNG to WebP converter — the From and To formats are preset from the page.
- Drag and drop your PNG files or click «Choose images» — bulk batches are fine.
- Set the quality slider: a high setting keeps images looking identical at a fraction of the size.
- Press «Convert PNG → WebP» — the files re-encode locally in your browser.
- Download your WebP images: one file saves directly, several arrive as a single zip.
Frequently asked questions
Is WebP better than PNG?
For delivering images on the web, usually yes — WebP is much smaller and still supports transparency, so pages load faster. For editing masters or lossless archiving, PNG remains the better keeper, since this converter's WebP output is lossy.
Does WebP keep PNG transparency?
Yes. WebP supports a full alpha channel, so transparent logos, icons and cut-outs come through exactly as they were in the PNG.
Does converting PNG to WebP lose quality?
The WebP encoding here is lossy, controlled by the quality slider. At the 90% default most images are visually identical to the original; drop the slider lower only when the smallest possible file matters more than fine detail.
Are my images uploaded during the conversion?
No. Everything happens inside your browser on your own device. Your PNGs never leave it, and no server receives or stores anything.
Is this converter free? Can I convert PNG to WebP in bulk?
Yes and yes. It is completely free with no sign-up, and there is no cap on batch size — multiple converted files download together as one zip.
Do all browsers support WebP?
All modern browsers have displayed WebP natively for years. Only very old browsers lack support, so keep a PNG or JPG fallback only if you must serve those.
How much smaller will my PNG get?
It depends on the image. Flat graphics and screenshots often shrink by roughly a third, while photographic PNGs — which PNG compresses poorly — can shrink far more. Convert one file and compare the sizes before running a big batch.
