Convert PNG to WebP for dramatic file size savings. Up to 80% smaller with full transparency preserved. Browser-based, no upload.
PNG files are great for lossless quality and transparency, but they're also large — often unnecessarily so. WebP can be 50–80% smaller than the same PNG while preserving full transparency and visual quality.
This converter takes any PNG and produces a WebP version that's dramatically smaller, with the same visual result. Drop a single file or hundreds. Nothing leaves your browser.
PNG to WebP usually delivers more savings than any other common conversion. Here's why:
The savings matter especially on the web — every kilobyte of image data is a kilobyte your visitors have to download.
Unlike JPG, WebP supports full alpha-channel transparency. If your PNG has a transparent background, semi-transparent edges, or any other alpha data, all of it carries over to the WebP output exactly as-is.
This makes PNG-to-WebP especially valuable for logos, icons, product cutouts, and UI graphics — you get all the same flexibility as PNG with a fraction of the file size.
The quality slider in this tool controls lossy WebP compression. For most use cases, this is what you want — even at 90% quality, the output is visually indistinguishable from the source for typical web content, and the savings are huge.
If you absolutely cannot lose any pixel data (medical imaging, archival storage, technical diagrams where exact colors matter), the conversion to a WebP raster is technically lossless at quality 100% — but the result is still smaller than PNG.
WebP support is now effectively universal:
Coverage is now above 96% of all global web traffic. Unless you specifically need to support very old systems, WebP is safe to use everywhere.
No. WebP fully supports alpha-channel transparency, so transparent backgrounds and semi-transparent pixels are preserved exactly as in the source PNG.
Typical savings are 50–80%. A 2 MB PNG screenshot often becomes a 300–500 KB WebP. The exact ratio depends on the content — complex/photographic PNGs benefit most.
Lossy by default, but quality 100% is effectively lossless for most images. Even at lossy 90%, output is visually identical to the source for normal viewing conditions.
Most print services accept WebP, but if your printer requires JPG or PNG, you may need to convert again. Check with your print provider first.
WebP's compression is fundamentally better than PNG's for most content. Even a heavily compressed PNG won't reach the file sizes WebP achieves easily. For maximum savings with no visual loss, WebP is the right answer.