画像とデザインツール

WebP to PNG

「WebP to PNG」は画像とデザインに使えるブラウザツールです。入力内容と結果は通常この端末内で処理され、登録は必要ありません。

ブラウザ内で処理登録不要プライバシーの説明 ↗

LOCAL WEBP CONVERTER

Convert WebP to PNG in your browser

Turn a WebP into a lossless PNG, preview the result, and download it without uploading the image.

No file selected

One WebP only, up to 20 MB and 40 megapixels. The source stays in this browser.

PNG supports transparency, so transparent pixels remain transparent. Canvas creates a new PNG from decoded pixels; original metadata, color profiles, animation, and compression data are not copied.

使い方

使い方

  1. Choose one WebP up to 20 MB, 10,000 pixels per side, and 40 megapixels.
  2. Convert the decoded image locally to a lossless PNG.
  3. Inspect the preview and download the PNG.

Transparency remains available

PNG supports an alpha channel, so transparent areas in the decoded WebP remain transparent in the downloaded result.

Lossless output from decoded pixels

Canvas writes a fresh PNG without JPEG-style quality controls. The resulting file size depends on the image content and browser encoder.

Local limits and metadata

Input is one WebP up to 20 MB, 10,000 pixels per side, and 40 megapixels. Conversion happens locally; the new PNG does not preserve source metadata, color profiles, animation, or original compression data.

よくある質問

あわせて知りたいこと

Does this upload my WebP?

No. The image is decoded and encoded in your browser.

Will transparency be preserved?

Yes. PNG supports transparency, and the browser canvas keeps decoded alpha values.

Does the PNG keep the original dimensions?

Yes. The output uses the decoded WebP width and height, within the stated limits.

Is metadata preserved?

No. Canvas creates a fresh PNG from decoded pixels and does not copy original metadata or color profiles.