WebP to AVIF Converter

Convert WebP images to AVIF for next-generation compression with even smaller file sizes. LessMB processes the conversion locally in your browser.

ファイルをここにドロップ、または

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

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

Next-gen compression

AVIF typically produces 20-30% smaller files than WebP at similar visual quality, making it the most efficient web image format available.

Growing browser support

AVIF is supported by Chrome, Firefox, Safari and Edge. Use it alongside WebP or JPEG fallbacks for maximum compatibility.

Local browser processing

Your WebP file is processed entirely on your device. No server upload is needed.

よくある用途

Convert existing WebP assets to AVIF for the smallest possible file sizes on modern websites.

Maximum optimization

Reduce image bandwidth further by serving AVIF instead of WebP to supported browsers.

CDN bandwidth

Adopt AVIF early as browser support reaches near-universal coverage.

Future-proofing
FAQ

WebP to AVIF 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
Is converting WebP to AVIF free?

Yes. LessMB converts WebP to AVIF for free in your browser without an account.

Is AVIF better than WebP?

AVIF usually produces smaller files at similar quality. However, WebP has slightly broader legacy support.

Are files uploaded?

No. Processing runs locally in your browser session.