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PNG to WebP Converter

Convert PNG to WebP and reduce file size by up to 70% — while keeping transparency intact. The best format swap for web graphics and logos. Free, instant, private.

PNG to WebP: the best swap for web images

WebP is strictly superior to PNG for web use in almost every scenario. It supports the same alpha transparency as PNG, handles both lossless and lossy compression, and produces files 26–70% smaller than equivalent PNGs. For any image destined for a website, PNG to WebP is the highest-impact format switch you can make.

Does WebP preserve PNG transparency?

Yes — WebP fully supports alpha transparency. Unlike JPEG, WebP can encode transparent areas just like PNG, so logos, icons, and images with non-rectangular shapes will retain their transparent backgrounds after conversion. This makes WebP the ideal modern replacement for PNG in web contexts.

Lossless vs. lossy WebP from PNG

This tool uses lossy WebP compression by default (quality 85), which produces significantly smaller files than lossless. For photographic PNG images, lossy WebP at quality 85 is visually indistinguishable from the original. For pixel-art, logos, or images where every pixel matters, increase quality to 95–100 for near-lossless output.

Frequently asked questions

Yes. WebP fully supports alpha channel transparency, just like PNG. Icons, logos, and cutout images with transparent backgrounds will retain their transparency in the WebP output. This is a key advantage over converting PNG to JPEG, which replaces transparent areas with white.
On average, WebP files are 26–70% smaller than equivalent PNGs. The reduction varies by image type: photographs in PNG format see the largest savings (60–70%), while simple flat-color graphics see 20–35% reduction. WebP's lossy compression is particularly efficient for photographic content.
Yes. All modern browsers support WebP including Chrome, Firefox, Safari 14+, Edge, and Opera. For web use, WebP has effectively replaced PNG as the recommended format for images requiring transparency. The only exception is email clients, which often cannot display WebP.
For photographs saved as PNG, use lossy WebP at quality 82–90 for the best size/quality balance. For logos, icons, screenshots, and graphics with text or sharp edges, use quality 90–100 to minimize compression artifacts on those sharp lines.