How much smaller will files be?

AVIF achieves excellent compression. BMP files shrink dramatically, often by 95% or more.

How much smaller does the AVIF get?

BMP is uncompressed, so the AVIF typically ends up a small fraction of the source size — often ten to twenty times smaller at visually indistinguishable quality settings.

Convert BMP to AVIF: Massive Size Reduction via AV1 Compression

BMP is uncompressed, so almost any modern encoder produces a much smaller file. AVIF's AV1 codec pushes the size reduction further than JPEG or WebP at equivalent quality. Best viewed in browsers released within the last three years. Free, processed in your browser.

100% free and unlimited, with no sign-up, no watermarks, and no 5-file paywall. Files are processed locally in your browser and never leave your device.

How to use this tool

Add your BMP images
Click Convert to AVIF
Download your AVIF images

Key facts

Tool: BMP to AVIF
Price: Free
Sign-up: No
Watermark: No
Processing: In your browser

When to use BMP to AVIF

BMP to AVIF helps with website uploads, email attachments, social media assets, marketplace product photos, profile images, screenshots, and design handoffs where the receiving app expects a specific image format or size.

Privacy, limits, and output quality

The file work happens in your browser. Your file is not uploaded to FilesFlow servers, which keeps private documents faster to process and easier to control.

For best results, keep the original image, convert from the highest-quality source you have, and review transparency, sharp edges, and file size before sharing. Converting a low-quality image to another format cannot restore detail that was already lost.

How Image Tools work stays simple

Use this tool when you need a fast format or size fix in the browser. For advanced retouching, layered edits, color-managed print work, or manual background cleanup, finish the file in an image editor.

BMP to AVIF for real workflows

BMP to AVIF helps prepare photos, screenshots, product images, icons, blog graphics, and design assets for the format or size another app expects.
Use it before website uploads, email attachments, marketplace listings, social previews, and quick image handoffs.
It is a practical option when compatibility matters more than manual image editing.

Checklist before using BMP to AVIF

Start with the best source image you have.
Review sharpness, transparency, colors, and file size after processing.
Keep the original file if you may need a higher-quality export later.

BMP to AVIF vs heavier alternatives

BMP to AVIF is made for quick browser-based image work. Use a dedicated image editor when you need layers, masking, retouching, manual cropping, or print color controls.

Useful next tools

Frequently asked questions

How much smaller will files be?: AVIF achieves excellent compression. BMP files shrink dramatically, often by 95% or more.
How much smaller does the AVIF get?: BMP is uncompressed, so the AVIF typically ends up a small fraction of the source size — often ten to twenty times smaller at visually indistinguishable quality settings.