BMP → AVIF
Convert your BMP files to AVIF for free, in your browser. No upload, no signup.
Drag your images or click
PNG · JPG · WebP · AVIF · JXL · GIF · BMP · PDF
⌘V paste⌘O open⌘S download
Why convert BMP to AVIF?
BMP (Bitmap) — Uncompressed Microsoft format. Very large files, rarely used on the web. Often encountered in legacy Windows contexts.
AVIF (AV1 Image File Format) — Cutting-edge format based on the AV1 video codec. Up to 50% lighter than JPG at equivalent visual quality. The best quality/size ratio available today.
Converting BMP to AVIF typically reduces file size while preserving a visual quality close to the original. This conversion significantly cuts file size — ideal for the web.
Quick comparison
BMP
Source formatBitmap
Released in 1986
Windows native
Best for: legacy Windows archives
- No compression
- Simple to read
- Huge files
- No modern use case
AVIF
Target formatAV1 Image File Format
Released in 2019
Chrome 85+, Firefox 93+, Safari 16+
Best for: Core Web Vitals optimized sites
- Record compression
- HDR & wide gamut
- Transparency
- Slow encoding
- Recent Safari support (16+)
How it works
- 1
Drop your BMP
Drag the file or paste it (⌘V).
- 2
Adjust the settings
Optional quality and max width.
- 3
Download the AVIF
Local, instant conversion.
Frequently asked questions
Is BMP → AVIF conversion free?+
Yes, totally and without limit. PixelCrush requires no signup or payment — you can convert as many BMP images to AVIF as you wish.
Are my files uploaded to a server?+
No. All conversion happens in your browser via WebAssembly. No image leaves your device, ensuring privacy and speed.
Can I convert multiple BMP files to AVIF at once?+
Yes, batch processing is native. Drop multiple files or a folder, adjust the settings, then download everything as a .zip in one click.
Is AVIF well supported by browsers?+
Chrome 85+, Firefox 93+, Safari 16+ For a public site, AVIF and WebP are the safest choices.
Is there a file size limit?+
No imposed limit. The only constraint is your device's memory, but files of several MB pass without difficulty.