What AVIF to BMP conversion does

Convert an AVIF image to BMP directly in your browser. BMP is a widely recognized uncompressed bitmap format still expected by some older Windows software and compatibility workflows.

How to convert AVIF to BMP

1. Choose a AVIF file.
2. Select Convert & download.
3. Save the .bmp file from your browser downloads.

Why use this conversion

BMP is the format some legacy Windows applications, print pipelines, or embedded/older tooling expect by default.

Transparency and output quality

BMP output here is 24-bit RGB with no alpha channel. Transparent pixels from the source are flattened onto a white background, the same convention used for JPG output. This tool writes an uncompressed 24-bit BMP, so the file will usually be noticeably larger than the source.

Privacy and local processing

• Processing occurs locally in the browser.
• Files are not uploaded to Looty Tools for conversion.
• Converted files remain on your device.

Limits and known issues

• Input: AVIF (.avif) only, up to 25.0 MB and 8,192 px per side.
• BMP output has no transparency support in this tool — pick an output format that keeps alpha (WebP, AVIF, TIFF, ICO, or QOI) instead if you need to preserve transparency.
• Animated AVIF: only the first decodable frame is converted to BMP. Animation is not preserved. AVIF decoding depends on your browser.
• Metadata is not preserved in the downloaded file.

Related tools

• AVIF to AnyConvert AVIF images into multiple common output formats.
• AVIF to TIFFConvert AVIF images to TIFF for print and archival use.
• AVIF to GIFConvert AVIF images to a static GIF.

AVIF to BMP FAQ

Why convert AVIF to BMP?

BMP is the format some legacy Windows applications, print pipelines, or embedded/older tooling expect by default.

Does BMP output keep transparency?

No. BMP output here is 24-bit RGB with no alpha channel. Transparent pixels are flattened onto a white background, the same convention used for JPG output.

Is BMP output compressed?

No. This tool writes an uncompressed 24-bit BMP (BITMAPINFOHEADER, BI_RGB), so the file will usually be larger than the source.

What happens with an animated AVIF file, and does every browser support AVIF?

Only the first decodable frame is converted; animation is not preserved. AVIF decoding also depends on your browser — unsupported browsers show a clear decode error instead of a mislabeled download.

Are my files uploaded?

No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.

What is validated before conversion?

The file must actually be an AVIF — the tool checks the ISO-BMFF ftyp brand, not just the filename or extension, before decoding.