Turn AVIF images into plain Windows bitmaps for Paint, legacy software and devices that only read BMP - for everyday use AVIF to PNG is smaller.
Curious what is inside the result? Open it in the BMP Analyzer.
Some software only understands the oldest image formats.
Industrial machines, embroidery and label printers, game mods, microcontroller displays and old Windows programs often accept BMP and nothing else.
BMP stores raw pixels, so it is easy for any program to read - at the cost of a much bigger file.
| AVIF | BMP | |
|---|---|---|
| Compression | Very strong (AV1) | None |
| Typical size | Tiny | About 3 bytes per pixel - huge |
| Transparency | Yes | 32-bit only, patchy support |
| Animation | Yes | No |
| Opens in | Modern browsers and apps | Every Windows program |
| Best for | Websites | Legacy software, raw pixel data |
Have BMPs to shrink for the web? Use BMP to AVIF. Test files are in the AVIF sample files.
Expect a big file: a 1920 x 1080 BMP is about 6 MB, whatever the AVIF weighed.
Drop your AVIF files into the box, keep 24-bit or pick another BMP type, and press Convert to BMP. More than two files come as a ZIP.
No. Your browser decodes the AVIF and writes the BMP on your device. Only a browser that cannot read AVIF at all sends that one file to our server to decode, and the copy is deleted right away.
BMP is uncompressed - every pixel takes 3 or 4 bytes. AVIF is one of the most compressed formats, so the BMP can easily be 50-100 times bigger. That is normal.
Yes, as a 32-bit BMP with an alpha channel. 24-bit and 8-bit BMPs fill transparent areas with the background colour you pick.
24-bit unless your software says otherwise. It is the format almost every program expects.
Yes. Tick the frames you want under the preview and each becomes its own BMP. BMP cannot animate - use AVIF to GIF for that.
Up to 50 AVIF files per batch. Recent conversions stay in this browser, so you can download them again later.