Convert BMP to AVIF

Free BMP to AVIF converter. Usually a smaller file. No signup, and your files are deleted after 1 hour.

Drop your images here

Maximum file size: 100 MB per file

How to convert BMP to AVIF

Quick answer: To convert BMP to AVIF: upload your BMP file, choose AVIF as the output format, click Convert and download the result. It takes a few seconds, needs no account, and your files are deleted from the server after 1 hour.

Upload your BMP file by clicking the upload area, dragging it in, or pasting an image URL.
Select AVIF as the output format.
Click Convert and wait a few seconds.
Download your AVIF file, or download several files at once as a ZIP.

What changes when you convert BMP to AVIF

BMP has no transparency, so the picture looks the same; the extra transparency support in AVIF simply stays unused.
Neither format throws away detail in this conversion, so the pixels are preserved.
Photos usually get smaller when saved as AVIF.

BMP vs AVIF at a glance

Comparison of BMP and AVIF
Feature	BMP	AVIF
Full name	BMP (Bitmap)	AVIF (AV1 Image File Format)
Introduced	1986	2019
Compression	Uncompressed	Lossy or lossless
Transparency	No	Yes
Animation	No	No
Best for	Simple Windows graphics and older software	The smallest possible web images at high quality
Compatibility	Opens almost everywhere but is rarely used on the web.	Supported by current Chrome, Firefox, Safari and Edge; older software cannot open it.

When to choose AVIF instead of BMP

Choose AVIF for the smallest possible web images at high quality. Its main limit: older software cannot open it and it is slow to create.

Stay with BMP if you need simple Windows graphics and older software.

Related conversions

AVIF to BMP BMP Converter AVIF Converter BMP to JPG BMP to PNG BMP to WEBP BMP to HEIC BMP to GIF BMP to SVG JPG to AVIF PNG to AVIF WEBP to AVIF HEIC to AVIF GIF to AVIF SVG to AVIF

BMP to AVIF FAQ

How do I convert BMP to AVIF?

Upload your BMP file, select AVIF as the output format and click Convert. When it finishes, download the AVIF file. No software or account is needed, and your files are deleted after 1 hour.

Does converting BMP to AVIF reduce quality?

No. Both formats keep the full pixel data, so the converted image looks identical.

Is transparency kept when converting BMP to AVIF?

BMP has no transparency, so there is nothing to keep; the AVIF looks the same as your original.

Will the AVIF file be smaller than the BMP?

For photos, usually yes. AVIF compresses images more efficiently than BMP.

Where can I open a AVIF file?

Supported by current Chrome, Firefox, Safari and Edge; older software cannot open it.

Is it free and safe to convert BMP to AVIF here?

Yes. It is free for up to 20 files per day and 100 MB per file, with no sign-up. Files are processed on our server, never shared, and deleted automatically after 1 hour.

Last updated: October 3, 2026