BMP vs AVIF — Comparison & Free Converter
Fast, instant BMP to AVIF conversion. No signup required. Just drop your .bmp file and get .avif in seconds.
Batch Settings
Color depth reduction: 32-bit → 12-bit
BMP stores up to 32 bits per channel, but AVIF supports only 12 bits. You may notice banding in smooth gradients (like sky or skin tones) where subtle color transitions are lost.
还在为BMP图片文件过大、分享不便而烦恼吗？尤其是在移动网络环境下，或者需要将图片上传到社交媒体时，笨重的BMP格式常常让人等待。AVIF作为新一代的图像压缩技术，不仅能将文件大小锐减，同时还能保持出色的画质。这就像是给您的图片施展了“瘦身魔法”，让它们在不失真的前提下，变得更加轻盈、传输更快。无论您是需要优化网站加载速度，还是想在微信朋友圈、小红书上分享高清大图，AVIF都能提供一个高效且高质量的解决方案。告别漫长的加载，迎接即时分享的畅快体验吧！
- 微信朋友圈分享
- 游戏素材优化
- 移动端应用图片加载
考虑到大陆地区对微信生态的高度依赖，将BMP转换为AVIF能显著提升图片在微信聊天和朋友圈中的加载速度与分享体验，避免因文件过大导致的压缩或画质下降。
About BMP to AVIF Conversion
BMP or AVIF — which format should you use? The answer depends on your needs. Here's a quick breakdown.
BMP is an uncompressed raster format that preserves every pixel but produces very large files. It has universal platform support. AVIF is the newest image format based on AV1 video codec, delivering exceptional compression — up to 50% smaller than JPEG at the same quality. It has limited platform support.
Full Name: BMP uses Bitmap Image, while AVIF uses AV1 Image File Format. Compression: BMP uses None (uncompressed), while AVIF uses Lossy & Lossless. Transparency: BMP uses No, while AVIF uses Yes.
So when should you convert BMP to AVIF? This conversion is ideal when you You need a file that works in web browsers. This conversion helps you optimize files for fast web delivery.
Converting BMP to AVIF maintains high quality with CocoConvert's optimised encoder settings.
If you've decided AVIF is the right choice, CocoConvert makes the conversion effortless. Upload your .bmp file, pick AVIF, and click Convert — done in seconds. The converter runs on secure servers in Germany, powered by FFmpeg, Sharp, and qpdf. Files are encrypted via TLS and erased within 24 hours.
Free tier: 5 files/hour, 250 MB each. Pro: 100 files/hour, 5 GB each. Works in every modern browser on desktop and mobile.
How to Convert BMP to AVIF
- 1
Choose your BMP file
Upload your .bmp file using drag-and-drop or the file browser. Batch mode lets you add multiple files.
- 2
Set format to AVIF
Select .avif from the output options. The converter applies optimal quality settings automatically.
- 3
Run the conversion
Click Convert. Server-side processing means your device stays fast — even for large image files.
- 4
Get your AVIF file
Download your converted file instantly. Batch downloads are available as a zip archive.
What Happens When You Convert BMP to AVIF
Your BMP image is decoded into raw pixel data, then re-encoded as AVIF.
Your BMP file is decoded — the compressed/stored pixel data is expanded into raw RGB pixels
Pixels are re-encoded using AV1 Image File Format's lossless compression
Metadata (EXIF, ICC profiles) is transferred where AVIF supports it
The AVIF file is saved and ready for download
BMP vs AVIF — Detailed Comparison
| Feature | .BMP | .AVIF |
|---|---|---|
| Full Name | Bitmap Image | AV1 Image File Format |
| Compression | None (uncompressed) | Lossy & Lossless |
| Transparency | No | Yes |
| Animation | No | Yes |
| Color Depth | up to 32 bits/channel | 10 or 12 bits/channel |
| HDR Support | No | Yes |
| Typical File Size | 10–50 MB per photo (uncompressed) | 50% smaller than JPEG at same visual quality |
| Platform Support | Universal | Limited |
| Browser Support | Limited | modern browsers |
| Year Created | 1986 | 2019 |
| Open Standard | No | Yes |
Should You Convert BMP to AVIF?
When to Convert
- ✓You need a file that works in web browsers
Frequently Asked Questions
Should I use BMP or AVIF?
It depends on your goal. BMP preserves full quality. AVIF preserves full quality. Choose based on whether file size or quality matters more for your use case.
Is AVIF higher quality than BMP?
Not necessarily. Converting BMP to AVIF maintains high quality with CocoConvert's optimised encoder settings. Quality depends on the compression type and settings, not just the format name.
Can I convert BMP to AVIF on Mac and Windows?
Yes. CocoConvert is a web-based tool that works in all modern browsers — Chrome, Safari, Firefox, Edge — on any operating system including macOS, Windows, Linux, iOS, and Android.
Is CocoConvert free for BMP to AVIF?
Yes. Free users get 5 conversions per hour (250 MB each). Pro subscribers unlock 100 files per hour, 5 GB per file, and priority processing.
What tools does CocoConvert use for BMP to AVIF?
CocoConvert uses FFmpeg for audio/video, Sharp for images, and qpdf for documents — the same open-source libraries used by Netflix, YouTube, and major enterprise platforms.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.