Transform your BMP files into AVIF format instantly within your browser.
BMP (Bitmap, also called Device Independent Bitmap) is a raster format created by Microsoft for early versions of Windows around 1990. Most BMP files store pixel data with little to no compression, so file sizes scale directly with image dimensions and color depth rather than actual visual complexity. This simplicity made BMP easy for any program to read and write reliably, but it also means a BMP is often 5-10 times larger than an equivalent JPG or PNG. It's still occasionally produced by legacy Windows tools, screenshot utilities, and some scientific or industrial imaging software that prioritize a simple, uncompressed structure.
AVIF (AV1 Image File Format) is a royalty-free image format based on the AV1 video codec, with its first specification published in 2019 by the Alliance for Open Media. It currently offers some of the best compression efficiency of any mainstream image format, often producing noticeably smaller files than WebP at the same visual quality, while also supporting HDR color and transparency. Browser support has grown quickly since 2020, and AVIF is increasingly used on high-traffic websites to cut bandwidth and improve load times, though encoding and decoding remain more computationally demanding than older formats.
Our client-side processing architecture delivers lightning-fast file transformations while maintaining strict privacy standards.
Yes, all conversion tools on ImgDomino are completely free with no registration required.
Yes, this tool is completely free with no registration, no watermark, and no conversion limit.
No, the conversion happens locally in your browser using JavaScript. Your files are never uploaded to any external server.
There's no fixed limit enforced by the tool since everything runs in your browser rather than on a server.
For most everyday uses, the visual difference is negligible.