Which image formats can I convert between?

Common web formats including PNG, JPG, WebP, GIF, BMP and AVIF, in both directions.

Are my images uploaded?

No. Conversion runs entirely in your browser, so your pictures never touch a server.

Converting to a lossless format like PNG keeps full quality; JPG and AVIF use compression you can tune.

Yes, add multiple files and each one is converted to your chosen output format.

A few browsers cannot encode AVIF; when that happens the tool falls back to PNG and tells you.

Transparency is kept for formats that support it (PNG, WebP, AVIF) and flattened for JPG, which has no alpha channel.

在线将 AVIF 文件转为 BMP。免费、浏览器内完成、无需上传。

文件

将文件拖放到此处 点击或拖放添加文件。可用箭头调整顺序。

Output

Quality 85%

Max width (px) Strip metadata

使用方法

Format info

将 AVIF 转为 BMP 可把高度压缩的现代图像转为体积庞大的未压缩位图，以兼容旧程序。Frespy 仅在浏览器中解码并重新编码，无需上传。

AVIF: AVIF 是常见的文件格式。使用 Frespy 可在浏览器中免费转换相关格式。

BMP: BMP 是常见的文件格式。使用 Frespy 可在浏览器中免费转换相关格式。