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BMP to AVIF converter
Free BMP to AVIF converter in your browser. Files stay on this device. Nothing is uploaded.
Drop images here
or click to choose. Paste works too.
Files never leave this device. Conversion runs in your browser.
Why convert BMP to AVIF?
BMP is lossless (Windows-centric legacy interchange). AVIF is lossy (cutting-edge web images when browser support is acceptable). Converting BMP to AVIF remaps pixels into the target container in your browser. AVIF can store transparency even if the BMP source did not.
What changes in the file
- AVIF uses lossy compression — choose quality carefully for sharp graphics
- AVIF can keep an alpha channel for later edits
- You can resize, adjust quality where relevant, and strip EXIF on export
- Conversion runs on this device — the file is not uploaded
How to convert BMP to AVIF
- Drop one or more BMP files onto the converter (or pick them from disk).
- Confirm the output is set to AVIF, then adjust quality, size, or metadata if needed.
- Download the converted AVIF file — processing never left your browser.
About BMP
BMP is an uncompressed Windows bitmap format. It is simple and widely readable on Windows, but files are large compared with modern compressed formats.
About AVIF
AVIF is a next-generation image format based on the AV1 video codec. It typically yields smaller files than WebP or JPG at similar quality and supports transparency and high bit depth.
Common questions
Is this BMP to AVIF converter free?
Yes. Formatly converts BMP to AVIF in the browser at no charge and without an account.
Do you upload my BMP files?
No. Decoding and encoding run locally with browser APIs and WebAssembly codecs when needed. Files stay on this device.
Will converting BMP to AVIF reduce quality?
AVIF is lossy, so you trade some detail for smaller files. Use a higher quality setting when fidelity matters.