Convert BMP to AVIF Online
BMP is Microsoft's uncompressed bitmap format, while AVIF is the next-generation AV1-based format. This online converter turns your BMP files into AVIF without installing software. The AVIF output gains an alpha channel, so you can add transparent backgrounds in later edits.
Conversion route
BMP → AVIF
Output Settings
Balanced quality and size (recommended)
About BMP to AVIF Conversion
This free online converter transforms BMP images into AVIF format directly in your browser. BMP is the uncompressed bitmap format from Microsoft, while AVIF is the next-generation AV1-based format. Whether you need broader compatibility, smaller file sizes, or different editing capabilities, switching from BMP to AVIF takes just a few seconds and requires no software installation.
The AVIF output gains an alpha channel that the original BMP lacked, giving you the freedom to add transparent backgrounds in later edits without starting your work over from scratch. The AVIF output uses efficient lossy compression, and a quality slider lets you balance file size against visual fidelity, defaulting to a value that suits the vast majority of images.
This conversion is popular with people who work with legacy Windows applications and low-level image processing, as well as anyone preparing images for performance-focused web delivery where bandwidth matters most. BMP files are huge because they store uncompressed pixel data, so moving to AVIF is a sensible, practical step. The result is a clean file that is ready to share, upload, publish, or edit further in your favorite tools.
Your privacy is protected throughout the entire process. Conversion happens entirely inside your browser, so your files never leave your device and are never uploaded to any server. The tool is completely free, handles multiple files at once, and works on any device with a modern browser, making it simple to convert BMP to AVIF whenever you need to.
How to Convert BMP to AVIF
- 1
Upload your BMP file by dragging it into the box or clicking to browse. You can add multiple files at once.
- 2
Adjust the quality slider (1–100) to balance AVIF file size and fidelity. The default of 85 suits most images.
- 3
Click Convert. Your BMP is converted right inside your browser.
- 4
Download your new AVIF file when processing finishes.
Why Use This Converter
Simple conversion
Convert BMP to AVIF with no software installation.
Private by design
Your files are converted entirely inside your browser and never leave your device.
Quality control
Fine-tune the AVIF output with a quality slider from 1 to 100 (default 85).
Transparency preserved
Alpha channels are kept intact in the converted file.
Frequently Asked Questions
Do I need to install software to convert BMP to AVIF?
No. The conversion runs through the web interface and the result is available as a download.
How is my BMP file processed?
This direction converts your file entirely inside your browser. The file never leaves your device and is not uploaded to any server.
What's the maximum BMP file size?
You can upload files up to 50 MB for this direction.