Can I convert AVIF to BMP on iPhone, Android, Mac or Windows?

Yes. ConvertPixels works in Safari, Chrome, Edge and Firefox on any device, so you can convert AVIF to BMP on your phone or computer without installing an app.

Is there a free AVIF to BMP converter with no sign-up?

Yes, this one. Converting AVIF to BMP on ConvertPixels is free, with no sign-up, no watermark and no daily cap. Convert up to 30 files per batch, each up to 50 MB.

Can I convert AVIF to BMP without losing quality?

Yes. BMP is a lossless format, so your converted file is pixel-for-pixel the same as the AVIF. (It can't add back detail the original never had.)

Does BMP keep the transparent background of my AVIF?

No - BMP has no transparency, so see-through areas get a solid fill. That's white unless you pick another background color in the options.

Can I convert an animated AVIF to BMP?

BMP only stores still images, so you'll get the first frame. To keep the animation, convert to GIF or WebP instead.

Can I batch convert AVIF to BMP?

Yes. Add up to 30 AVIF files and convert them in one batch. You can even choose a different output format for individual files, then download them separately or together as a ZIP.

Is it safe to upload AVIF files to ConvertPixels?

Yes. Uploads use an encrypted connection and are processed automatically - nobody views them. Your originals are deleted straight after conversion and the results within an hour, or instantly if you click "Delete from server now".

Convert

AVIF to BMP Converter

Convert AVIF images to BMP online in seconds - free, with no sign-up and no watermark. Batch convert up to 30 files and download them together as a ZIP.

Free
No sign-up
No watermark
Private by design

Choose filesor drag and drop files hereUp to 30 files · 50 MB each

Image Converter

How to use it

1
Drop your AVIF files onto the converter
2
Press Convert to turn them into BMP
3
Download your BMP images one by one or as a ZIP

AVIF to BMP

Why convert AVIF to BMP?

The main difference: AVIF is a lossy or lossless format, while BMP is a lossless format. AVIF can have a transparent background, BMP can't.

Where BMP works best

BMP is ideal for legacy Windows software (files are very large). Converting gives you a file that works in the apps and websites that ask for BMP.

AVIF vs BMP: what's the difference?

Property	AVIF	BMP
Compression type	Lossy or lossless	Lossless (exact pixels, larger files)
Transparent background	Yes	No
Animation	Yes	No
Where it opens	Chrome, Edge, Firefox and Safari 16+; many apps can't open it yet	Most browsers, rarely used on the web
Used for	The smallest high-quality images for the web	Legacy Windows software (files are very large)

What is an AVIF file?

AVIF (AV1 Image File Format) is a modern image format based on the AV1 video codec, developed by the Alliance for Open Media - Google, Apple, Microsoft, Netflix and others. It typically produces smaller files than both JPG and WebP at the same visual quality.

AVIF supports transparency, HDR and wide color, which makes it a favorite for fast websites. Support outside browsers is still patchy, so downloaded AVIF files often need converting.

How to open an AVIF file

Chrome, Edge, Firefox and Safari 16+ display AVIF. Windows 11 opens it in Photos once the free AV1 Video Extension is installed; macOS Ventura and later preview it. For editors and forms that refuse it, convert to JPG or PNG.

Extension: .avif
Compression: Lossy or lossless (AV1)
Transparency: Yes
Best for: The smallest high-quality web images

What is a BMP file?

BMP (bitmap) is Microsoft's original Windows image format. It stores pixels with little or no compression, so it's simple and lossless but very large - a 12-megapixel photo can top 35 MB.

BMP is mainly found in older Windows software, some industrial and embedded systems, and scanner output. For almost every other use, PNG gives the same quality at a fraction of the size.

How to open a BMP file

Windows Photos and Paint open BMP files, as does Mac Preview. Most browsers can display them too. Convert to PNG for a lossless copy that's much smaller, or JPG for photos.

Extensions: .bmp, .dib
Compression: None (usually)
Transparency: Rarely supported
Best for: Legacy Windows software