APNG to WebP Converter

Extracting a still from an animated PNG

An APNG is a PNG that plays like a GIF, but sometimes you only need one frame — a thumbnail, an icon or a preview image. Re-encoding that first frame to WebP gives you a modern, lightweight still that keeps the transparency PNG is known for, at a fraction of the file size.

Transparency and the quality slider

WebP preserves the alpha channel the APNG carried, so cut-out artwork stays cleanly edged instead of landing on a solid box. The quality slider then sets how hard the codec compresses: flat icons tolerate 75-85% with no visible change, while photographic frames want 90% or more. The size figure updates live so you can choose per image.

Batch conversion, privately

Up to twenty files convert in one run, each up to 25 MB, processed one at a time so memory stays predictable, with a summary of size before and after. Each result is named after its source with a .webp extension. Nothing is uploaded: the decode, the re-encode and every download happen inside the tab, with no account and no watermark, because there is no server on the other end.

The quiet winner among the APNG conversions

This is usually the best destination for a still frame. You keep the alpha channel the animated PNG carried — soft edges, shadows and cut-outs survive — while dropping the heavy lossless PNG encoding for WebP's far lighter compression. A flat icon or a translucent frame can shrink dramatically against the APNG to PNG output yet stay transparent, which the APNG to JPG route cannot do at all. Reach for JPG only when a consumer genuinely will not open WebP; otherwise WebP is the modern target that loses neither transparency nor bytes.

One frame out of many — choose it deliberately

Flattening an animation to a still takes the first frame, so the image you get is whatever the animation's opening instant happened to be: often a blank or in-between pose rather than the representative shot you wanted as a thumbnail. There is no frame picker here, so if the first frame is a poor poster image, preview the APNG, find a better moment and export that frame before converting. Judge the single WebP against the real use — thumbnail, icon, preview — and tune per image with the compressor if you need the last few percent of weight off.