PNG to AVIF Converter

Convert PNG images to AVIF for the smallest possible file sizes with transparency support. AVIF can be 3-5x smaller than PNG. LessMB converts locally in your browser.

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JPG · PNG · WebP · GIF · AVIF · SVG

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工作方式

PNG to AVIF Converter 适合私密的浏览器工作流

3-5x smaller than PNG

AVIF dramatically outperforms PNG for file size while supporting transparency and millions of colors.

Transparency preserved

AVIF supports alpha transparency like PNG, so logos and icons keep their transparent backgrounds.

Local conversion

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

常见用途

Replace heavy PNG assets with lightweight AVIF for faster page loads.

Web performance

Keep transparency while dramatically reducing file size for web overlays.

Transparent graphics

Use AVIF for next-generation web design with the best compression available.

Modern websites

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完全在本地完成的私密图片压缩

免费在线图片压缩

为网页设计、邮件附件、在线店铺、新闻简报和表单提交极速缩小图片体积。LessMB 完全在您的设备本地处理支持的图片文件，敏感的照片与创意素材无需离开您的浏览器。

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常见问题

PNG to AVIF Converter 常见问题解答

关于此工具、支持流程和本地浏览器处理的常见问题回答。

无需上传免费工具浏览器处理
Does AVIF support transparency?

Yes. AVIF supports full alpha transparency like PNG, but with much smaller file sizes.

Is converting PNG to AVIF free?

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

Are files uploaded?

No. Conversion runs locally in your browser session.