画像圧縮ツール
ブラウザーで JPG と PNG を圧縮します。
使い方
Compress images privately
Images are resized and re-encoded to JPEG in your browser. Nothing is uploaded. Transparency becomes white, so use a PNG editor when you need an alpha channel.
- Choose a JPG, PNG or WebP image.
- Set the quality and maximum width.
- Download the compressed JPEG.
よくある質問
Which formats are supported?
Any image your browser can open, including JPG, PNG, WebP and GIF (first frame).
Why is my PNG no longer transparent?
The output is JPEG, which does not support transparency.