Convert bmp to avif
Converted on your device. Files never leave this tab.
Nothing is uploaded
The converter runs inside this page. Cut your network after it loads and it still works.
No account, no daily limit
No sign-up, no daily limit, no watermark, no queue behind other people's files. Batch as many BMP files as you like.
Real AVIF output
Encoded by magick, the same library the command-line tools use — not a renamed extension.
About BMP
Windows Bitmap
Microsoft's bitmap format, which usually stores pixels uncompressed, so files are large for their dimensions. Almost every Windows program can read it. Convert to BMP when an older Windows tool or embedded device only accepts it; convert away from it to save space.
About AVIF
AV1 Image File Format
An image format from the Alliance for Open Media, finalized in 2019, that stores AV1-compressed images in a HEIF container. It supports lossy and lossless compression, alpha and HDR, and its files are often smaller than WebP. Use it for web images when you want the smallest files; current Chrome, Firefox and Safari all display it.