Turn PNG images into compact WebP files — right here in your browser. Transparency preserved.
Your files never leave this device.png · up to 10 at once · 50 MB each
Four steps, a few seconds, zero uploads.
Drag images onto the box above, or click Browse to pick them from your device. Up to 10 at once.
Pick a WebP quality level — 80 is a great default that stays sharp while making far smaller files.
Latch decodes each PNG and re-encodes it as a WebP using your browser — instantly and offline.
Save them one at a time, or grab everything at once in a single zip. That's it.
PNG is lossless and universally supported, but that makes for big files — especially for photos and detailed graphics. WebP is Google's modern format built for the web: it produces images that are typically 25–80% smaller at the same visual quality, so pages load faster and use less bandwidth.
Crucially, WebP supports an alpha channel just like PNG — so any transparency in your image carries straight across with no background colour added. Every modern browser displays WebP, which makes it the natural choice for images you're putting on a website.
To turn a PNG into a WebP, drop your files above, set the quality, and hit Convert — everything runs in your browser, so the images never leave your device. Need to go the other way? WebP to PNG converts them back to lossless PNG.
No. Your browser handles the entire conversion locally. Nothing is sent to a server — the tool even works with Wi-Fi switched off.
WebP files are typically 25–80% smaller than the equivalent PNG, so pages load faster and use less bandwidth. It's the format Google recommends for images on the web, and it's supported by every modern browser.
Yes. WebP supports an alpha channel just like PNG, so any transparent areas in your PNG carry straight through to the WebP — no background colour is added.
WebP here uses lossy compression, so there's some loss — but at the default quality of 80 it's visually indistinguishable from the original while being far smaller. Raise the slider toward 95–100 if you want maximum fidelity.
You can convert up to 10 images at once, up to 50 MB each. The real limit is your device's available memory, not an arbitrary cap we've set.
Drag your PNG files onto the drop zone (or click Browse), set your quality, then hit Convert to WebP. Latch turns each PNG into a WebP right in your browser and lets you download them one by one or as a single zip — convert a single file or batch several at once.