Convert BMP to AVIF
Convert BMP to AVIF online free. Fast, private and in your browser — no upload, no sign-up and no watermark. Batch BMP→AVIF conversion that works on any device.
To convert BMP to AVIF, drop your BMP file into the converter above, then download the AVIF result. It's free, needs no sign-up, and there's no watermark. The conversion runs entirely in your browser, so your files never leave your device.
Why convert BMP to AVIF?
Convert BMP to AVIF for the maximum size reduction. AVIF is one of the most efficient image formats available, so a bulky uncompressed bitmap becomes a tiny, high-quality file that's perfect for fast-loading pages.
- Achieving the smallest possible file from a BMP.
- Modernising old bitmaps for performance-first sites.
- Archiving bitmap graphics at minimal size.
BMP vs AVIF
BMP · Bitmap
BMP is an old, uncompressed Windows image format. Because there's no compression the files are huge — converting to PNG or JPG keeps the quality while cutting the size dramatically.
AVIF · AV1 Image File Format
AVIF is built on the AV1 video codec and is one of the most efficient image formats available — often 50% smaller than JPG with better quality, plus transparency and HDR. Encoding is slower and support, while broad, is slightly newer than WebP.
BMP to AVIF — frequently asked questions
How do I convert BMP to AVIF?
Drop your BMP file (or several) into the converter, confirm AVIF is selected as the output, click convert, then download the AVIF file. The whole thing takes a few seconds.
Is this BMP to AVIF converter free?
Yes — it's completely free with no watermark and no sign-up required.
Is it safe to convert BMP to AVIF here?
Yes. BMP to AVIF conversion happens entirely in your browser — your files are never uploaded to a server.
Can I convert multiple BMP files at once?
Yes. Add as many BMP files as you like and download them individually or together as a zip.
Does it work on mobile?
Yes — the converter runs in any modern browser on phones, tablets and desktops.