AVIF转PNG在线转换器
即时将AVIF图像转换为PNG格式。所有处理均在浏览器本地完成——您的文件绝不会离开您的设备。
将AVIF图片拖放到此处
or click to select files, supports multiple selection
为什么使用我们的AVIF转PNG转换器
快速转换
Uses wasm-vips, a WebAssembly port of the Vips library, to decode AVIF files accurately in your browser. No server uploads needed, no compatibility worries.
无损输出
PNG preserves every pixel from the decoded AVIF without recompression artifacts. Perfect for archiving, editing, or further processing of your images.
批量处理
Select multiple AVIF files at once for batch conversion. Each image is processed independently, and you can download them all at once with one click.
隐私保护
All conversion happens locally in your browser. AVIF images are never uploaded to any server. Your files remain on your device at all times.
如何在线免费将AVIF转换为PNG
拖放您的AVIF文件
点击上传区域或将AVIF图片拖入浏览器。该工具接受.avif文件（MIME类型image/avif）。可一次选择多个文件进行批量转换。
转换为PNG
点击"转换为PNG"按钮。每个AVIF文件在浏览器中使用WASM驱动的vips库解码，然后编码为PNG。处理即时完成。
下载您的PNG文件
每张转换后的PNG会显示预览及与原始AVIF对比的新文件大小。可单独下载或点击"下载全部"一次性获取所有文件。
AVIF转PNG技巧
为什么将AVIF转换为PNG
AVIF is a newer format with excellent compression, but not all software and platforms support it yet. Converting to PNG guarantees compatibility — virtually every image viewer, editor, and web browser opens PNG by default. PNG is also the preferred format for editing workflows where you need lossless pixel data to pass between tools. For sharing on social media or embedding in documents that reject AVIF uploads, PNG is the reliable fallback.
何时使用PNG而非AVIF
Expect your PNG files to be significantly larger than the AVIF originals. AVIF achieves 50%+ better compression than JPEG for similar quality, while PNG stores every pixel losslessly. A 500 KB AVIF photo might become 3–5 MB as PNG. This is normal and expected. Keep AVIF originals for storage and use PNG only when you need universal compatibility or lossless editing capability.
文件大小预期
For the best of both worlds, keep AVIF as your primary storage format (small files, excellent quality) and convert to PNG on demand when you need broad compatibility. AVIF is ideal for web delivery and archiving. PNG is best for: sending to clients or collaborators who may not support AVIF, importing into graphic design software, editing in tools that don't decode AVIF, or printing where lossless data matters.
常见问题
Can I convert AVIF images to PNG without losing quality?
Yes. PNG is a lossless format, so the pixel data is preserved exactly. However, note that AVIF itself uses lossy compression internally during encoding. The conversion from decoded AVIF to PNG is lossless — what you see in the AVIF is what you get in the PNG, with no additional degradation.
Why can't this conversion use Canvas like other tools?
Most browsers cannot decode AVIF images via Canvas. AVIF is a relatively new format that requires dedicated decoding libraries. Our tool uses wasm-vips, a WebAssembly port of the Vips image processing library, to decode AVIF in-browser. This ensures broad compatibility and accurate decoding without uploading your files to a server.
Will my AVIF file transparency be preserved in PNG?
Yes. AVIF supports alpha transparency, and PNG also supports it. When you convert an AVIF image with transparent areas to PNG, the transparency is fully preserved. This is a key advantage over formats like JPG which cannot handle transparency at all.
Is there a file size limit for AVIF to PNG conversion?
There is no hard file size limit, but because conversion happens locally in your browser using WebAssembly, very large images may take longer to process and consume more memory. For typical web images under 20 MB, conversion is fast. Files are never uploaded — everything stays on your device.