PNG to WebP Converter

Convert PNG images to WebP for dramatically smaller file sizes while preserving transparency. LessMB processes the conversion locally in your browser.

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ファイルは端末内に残ります

JPG · PNG · WebP · GIF · AVIF · SVG

アップロード不要完全無料ブラウザ内で動作
仕組み

PNG to WebP Converter ブラウザ内のプライベートな作業向け

Up to 3x smaller with transparency

WebP supports alpha transparency like PNG but produces much smaller files. Ideal for logos, icons and UI elements.

Modern web standard

WebP is supported by all modern browsers and is the recommended format for web performance optimization.

Local browser processing

Your PNG is decoded and re-encoded as WebP entirely in your browser. No server upload is needed.

よくある用途

Convert PNG icons and graphics to WebP for faster page loads.

Web assets

Keep transparency while reducing file size for overlays and stickers.

Transparent images

Optimize product images with transparency for faster store pages.

E-commerce
FAQ

PNG to WebP Converter よくある質問

このツール、対応ワークフロー、ローカル処理についてのよくある質問です。

アップロード不要無料ブラウザ内処理
Does WebP support transparency like PNG?

Yes. WebP supports full alpha transparency, so converting from PNG preserves transparent areas.

How much smaller is WebP than PNG?

WebP can be 2-3x smaller than PNG for the same image, especially for images with many colors.

Are files uploaded?

No. Conversion runs locally in your browser session.