Convert BMP to AVIF Online Free

Instantly convert your BMP files to AVIF format right in your browser. No uploads, no registration, 100% free and private.

No File Uploads
100% Browser-Based
Free & Unlimited
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How to Convert BMP to AVIF

1

Upload Files

Select your BMP files by dragging and dropping or clicking to browse.

2

Choose Settings

AVIF is pre-selected. Adjust quality and metadata options if needed.

3

Download

Click Convert and download your AVIF files instantly.

Why Convert BMP to AVIF?

Converting from BMP to AVIF is useful when you need smaller file sizes and Chrome, Firefox, Safari 16+ support. BMP (Bitmap Image File) files can be converted to AVIF (AV1 Image File Format) instantly using our browser-based converter — no uploads needed, completely free.

BMP vs AVIF Comparison

FeatureBMPAVIF
CompressionLosslessLossy
TransparencyNoYes
AnimationNoYes
Browser SupportUniversalChrome, Firefox, Safari 16+
Typical File SizeVery large (uncompressed)Smallest (50% less than WebP)
Best ForLegacy systems, raw image dataMaximum compression, modern websites

Frequently Asked Questions

Yes, completely safe. PhotoFormatLab processes your files entirely in your browser using JavaScript. Your images are never uploaded to any server — the conversion happens on your device. No one else can see or access your files.

AVIF uses lossy compression, so there may be a very slight quality reduction. However, at our default quality setting of 90%, the difference is virtually imperceptible. You can adjust the quality slider to find the perfect balance between file size and quality.

Yes! You can drag and drop multiple files at once, or use our batch converter to process many files simultaneously. All conversions run in parallel on your device for fast results.

BMP (Bitmap Image File) uses lossless compression and is best for legacy systems, raw image data. AVIF (AV1 Image File Format) uses lossy compression and is best for maximum compression, modern websites.

There's no hard limit since processing happens on your device. However, very large files (over 50MB) may take longer to process depending on your device's capabilities. For best performance, we recommend files under 25MB.

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