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AVIF to BMP converter

Convert AVIF to BMP in your browser. No upload and no account: the file never leaves your device, so the only size limit is your device’s memory.

I want BMP
90%
Icon sizes
How to make the SVG

Tracing suits logos, icons and flat artwork and scales cleanly. Photos are better kept as pixels inside the SVG.

16
50%
Dither Scatters black dots to suggest gray, instead of a hard cut-off.
Advanced 5
Keep the animation For animated GIF, WebP and APNG sources. Turn off to save just the first frame.
Rotate
Mirror horizontally
Mirror vertically

For an exact width and height, use the Resize Image tool instead.

Bytes of your files sent anywhere: 0 B

Related conversions

Need it the other way round? Convert BMP to AVIF

Other ways to convert AVIF

Convert other formats to BMP

Read more about the AVIF format and the BMP format, or see every image tool and all image conversions.

Should you convert AVIF to BMP?

A safe conversion when BMP is what you need: both AVIF and BMP keep every pixel, so the picture itself doesn’t change.

BMP is also the more widely supported of the two: it opens almost everywhere, while AVIF is opens in current browsers and apps.

AVIF is a modern image format that squeezes photos smaller than WebP; BMP is an uncompressed grid of pixels. Use BMP only when a specific piece of software, a printer or an embedded device asks for it.

AVIF and BMP compared
Property AVIF BMP
Compression Lossy or lossless Uncompressed
Transparency Yes No
Animation Yes No
Support Opens in current browsers and apps Opens almost everywhere
Best for The smallest possible photos on a modern website Old software and hardware that only understands raw bitmaps
Introduced 2019 1990

How to convert AVIF to BMP

  1. 01

    Add your AVIF

    Drop your AVIF image onto the box, or click to choose it. It is read from your disk and stays there.

  2. 02

    Check the settings

    The output is already set to BMP. Change the quality if you want to; the defaults suit most files.

  3. 03

    Save the BMP

    Press convert and save the BMP. Several files come back together as a ZIP.

What changes when AVIF becomes BMP

BMP can’t hold transparency

Any transparent area in the AVIF has to become a solid color, because BMP has no alpha channel. The background setting decides which color; white suits documents and most uploads, but pick the color of the page it will sit on if you know it, because it can’t be undone later.

Animations become a still

BMP can’t move, so an animated AVIF is saved as its first frame. Choose GIF or APNG instead to keep the animation.

Expect a much larger file

BMP is far bigger for the same content. Choose it because something needs BMP, not to send or store the file. AVIF: Often around half the size of the equivalent JPG. BMP: A 12-megapixel image is about 36 MB.

This page is put together from our notes on each format, choosing only what is true of AVIF and BMP, so every pairing states the same facts the same way. How these pages are made.

Why it doesn’t upload

Changing a picture’s format is work your browser already knows how to do. Sending your photos to a server first only adds waiting and risk, so nothing is sent.

How to check for yourself

Worth knowing

  • About the AVIF. AVIF’s savings are real, but encoding is slow, so a batch that takes seconds as JPG can take minutes as AVIF.
  • About the BMP. BMP looks like a safe “raw” choice, but a single photo can run to tens of megabytes and most sites refuse it.
  • DDS, PSD, EXR, XWD and JPEG 2000 are read by the FFmpeg engine, a one-time 31 MB download.

Questions

Will converting AVIF to BMP lose quality?

No. AVIF and BMP are both lossless, so every pixel is kept.

What happens to a transparent background when converting AVIF to BMP?

BMP has no transparency, so transparent areas are filled with the background color you choose, white by default.

Read more about this

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