Convert BMP to AVIF
Shrink your BMP to a tiny AVIF file
How it works
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Upload your BMP
Select or drag a BMP file up to 100 MB.
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Choose quality
Adjust the AVIF quality slider for the best balance of size and clarity.
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Download your AVIF
Get your converted AVIF image instantly.
Why convert BMP to AVIF?
- BMP files are uncompressed and huge — AVIF reduces them by 95%+
- AVIF offers the best compression ratio of any modern image format
- Convert old bitmap files to a format that works on the modern web
About BMP to AVIF conversion
BMP (Bitmap) is an uncompressed image format that produces very large files. AVIF uses advanced compression to achieve the smallest file sizes of any current image format while maintaining excellent visual quality. Converting BMP to AVIF can reduce file sizes by 95% or more.
When to convert BMP to AVIF
You have BMP files from Windows screenshots, legacy software, or old archives that need to be compressed for sharing or web use.
This tool converts your BMP to AVIF with adjustable quality. Even at high quality settings, AVIF files are dramatically smaller than BMP.
AVIF is supported by all modern browsers and provides the best compression available for photographic content.
Frequently asked questions
- How much smaller will the AVIF be?
- Expect 95-99% size reduction. A 10 MB BMP might become 100-300 KB as AVIF.
- Will I lose quality?
- AVIF uses lossy compression, but at quality 80+ the difference from the original is nearly imperceptible.
- Why not convert to JPEG instead?
- AVIF produces files roughly 50% smaller than JPEG at the same visual quality, making it the better choice for modern use.
- Does AVIF support transparency?
- Yes, AVIF supports transparency. BMP files typically don't have transparency, so this usually isn't a factor.
- Is my file stored on your servers?
- Files are kept only long enough for you to download the result. Everything is automatically deleted within 24 hours.