Convert AVIF to BMP
Free online converter for AVIF files. Uncompressed Windows bitmap. Nothing to install, no watermark, and every file is deleted automatically.
Drag and drop your files
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Upload a AVIF file to convert it to BMP. Up to 3 files at once, 100 MB each.
Free · up to 3 files · 100 MB each · files deleted automatically after 1 hour.
About AVIF and BMP
AVIF .avif
A modern image format derived from the AV1 video codec. It compresses harder than JPEG or WebP at the same visual quality, and handles wide colour and high dynamic range.
Good for
- The smallest files of any format here at a given quality
- Transparency, animation, wide colour gamut and HDR
- Holds up better than JPEG at very low bitrates
Trade-offs
- Support is newest — older browsers and many desktop apps cannot open it
- Encoding is slow compared with JPEG
- Fine detail can smooth over at aggressive settings
image/avif
BMP .bmp
Microsoft's plain bitmap. It generally stores pixels with no compression at all, which makes it simple to read and very large on disk.
Good for
- Dead simple — every pixel stored literally
- No compression artefacts of any kind
- Reliably readable by old Windows software
Trade-offs
- Enormous files, often ten times a PNG of the same image
- Effectively unusable on the web
- Transparency support is inconsistent between readers
image/bmp
AVIF and BMP side by side
| AVIF | BMP | |
|---|---|---|
| Compression | Lossy or lossless | Uncompressed |
| Transparency | Yes | Limited — 32-bit variants only |
| Animation | Yes | No |
| Typically used for | Modern web delivery, bandwidth-sensitive images | Legacy Windows software, intermediate working files |
What changes when you convert AVIF to BMP
Only the first frame survives
Most AVIF files are still images and convert straightforwardly. AVIF can also hold an animation, though, and BMP cannot: if yours is animated, what you get back is its first frame and nothing else. Convert to a video format, or to another animating image format, if the motion matters.
Expect a very large file
BMP generally stores every pixel with no compression at all, so the result is often several times the size of the AVIF it came from while looking exactly the same. It is worth choosing only for old Windows software that will not read anything else.
Camera data is removed by default
A AVIF straight from a phone or camera carries EXIF metadata — model, settings, timestamp and, quite often, the GPS coordinates of where the photo was taken. The converted BMP is written without it, so a file you are about to share does not quietly carry your location. The orientation flag is read and applied to the pixels first, so the image will not come out sideways once the tag holding it is gone. If you need the metadata kept, there is a setting for it.
How the BMP is written
Our default is stored as plain uncompressed pixels, since that is essentially all BMP offers. The quality control on the converter moves this if you need to — the default aims to be indistinguishable from the source at a sensible file size, rather than to win a compression benchmark.
Other AVIF conversions
Other ways to get BMP
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