WebP to JPG
「WebP to JPG」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。
LOCAL WEBP CONVERTER
Convert WebP to JPG in your browser
Choose a quality level and a background color, preview the JPEG, and download it without uploading the image.
使い方
使い方
- Choose one WebP up to 20 MB and 40 megapixels.
- Set JPG quality and a background color for transparent pixels.
- Convert locally, inspect the preview, and download the JPG.
JPG cannot store transparency
Every WebP pixel is composited over the selected background color before encoding. This gives transparent logos and illustrations a predictable appearance in a format with no alpha channel.
Quality controls the new JPEG
The browser Canvas JPEG encoder receives the selected quality from 10 to 100. Higher values generally preserve more detail and produce larger files, though the exact size depends on the image.
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 JPG 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, composited, and encoded in your browser.
What happens to transparent pixels?
They are filled with the background color you choose because JPG does not support transparency.
Does the JPG 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 JPG from decoded pixels and does not copy original metadata or color profiles.