BMP to AVIF Converter
Convert BMP images to AVIF. The output format is preselected for you — just upload, convert and download. Everything runs locally in your browser: your files are never uploaded to a server.
Select images to convert
How to use
Converting BMP to AVIF takes four steps, entirely in your browser.
- Upload your imageUpload your BMP image using the drop zone or Browse files.
- Choose the output formatAVIF is already selected as the output format — no configuration needed.
- ConvertPress Convert; the image is processed locally in seconds.
- Download the resultDownload your new AVIF file.
- Every step runs locally in your browser.
Key Features
Change image format between JPEG/JPG, PNG, WebP, AVIF, BMP and SVG. Every conversion runs locally in your browser — files are never uploaded.
- Browser-based processingConversions run locally — no uploads, ever.
- Full format matrixJPEG/JPG, PNG, WebP, AVIF, BMP and SVG in one place.
- Batch friendlyConvert many images at once and download a ZIP.
- JPEG background controlChoose white or black when flattening transparency.
Supported formats & privacy
What this page handles and how your files are treated.
This page handles BMP to AVIF specifically. The full converter also supports JPEG/JPG, PNG, WebP, AVIF, BMP and SVG. Every conversion runs locally in your browser — files are never uploaded, so the process is private and works offline after load.
Frequently asked questions
AVIF encoding runs locally through a WebAssembly (libavif) codec. The first conversion loads the codec (a moment); after that, encoding is fast and fully offline.
BMP stores pixels uncompressed, so files are very large. Converting to another format keeps the same pixels at a fraction of the size.
Yes. There is no account, no watermark and no upload: the conversion happens entirely inside your browser.