Convert PNG to WebP Online Free

Drop your PNG files in the box at the top of this page; WebP is already picked as the output. Press Convert All, then download each WebP or all of them as one ZIP. There is no sign-up and no watermark.

At the default Quality of 90, WebP is lossy: photos look the same, but small text and thin lines can soften a little. Switch on Lossless under Advanced and no color moves by more than 1 out of 255 against your PNG, a change you can't see.

Use Lossless for screenshots, logos and drawings with text: our 1440 by 900 screenshot shrank by 72% that way. Use lossy for photos: a 14.17 MB photo PNG became 546.34 KB at Quality 90, but 8.94 MB as lossless.

Yes. WebP keeps the alpha channel in both modes, so see-through backgrounds and soft edges stay. In our test, a 1.52 MB product cutout kept every one of its 667,519 clear pixels and came out at 64.58 KB at Quality 90.

Tiny, flat graphics can grow with lossy WebP. A 1.15 KB test graphic of 200 by 150 pixels became 2.91 KB at Quality 90 but only 724 Bytes with Lossless on. The tile shows a plus sign and the percent when a file grows.

Each PNG can be up to 100 MB. WebP itself can't go past 16,383 pixels on either side, so a very wide banner or long scroll capture fails with a general error. Make it smaller in Resize first, or pick AVIF in the format menu.

Yes. Add as many PNGs as your device can handle, with no daily cap, and they convert one after another. PNGs you add later with Add More Files start as JPG, so set those to WebP before you press Convert All.

No. The converter reads only the first frame of an animated PNG (APNG), and the file tile gives no warning. If you have the animation as a GIF, our GIF to WebP converter keeps every frame.

The color profile stays: our Display P3 test PNG kept it with Strip metadata on, the default. Text notes, dates and other metadata are removed. A 16-bit PNG is saved with 8 bits per channel, the most WebP can hold.

WebP files are usually far smaller and still support transparency, which helps page speed. PNG opens in more places, though, and some apps and upload forms still refuse WebP. Keep your original PNGs; our WebP to PNG converter turns a WebP back.

Yes. A worker inside this browser tab turns your PNGs into WebP, and they are not sent to our servers. The page fetches its 14 MB image engine on first use. Our analytics count page views and editor time, never file names or pictures.