Convert BMP to WEBP — Maximum Compression
Go from the least efficient image format (BMP, no compression) to one of the most efficient (WEBP, advanced compression). Expect 95-99% file size reductions with great visual quality.
Drop your BMP file here
or click to browse · up to 50 MB
Ctrl+Z undo · Ctrl+Y redo
SSIM-optimized — finds the lowest file size at your chosen visual fidelity.
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BMP vs WEBP Comparison
| Feature | BMP | WEBP |
|---|---|---|
| Full Name | Bitmap Image File | Web Picture Format |
| Lossy Compression | ❌ | ✅ |
| Lossless Compression | ✅ | ✅ |
| Transparency | ❌ | ✅ |
| Animation | ❌ | ✅ |
| Browser Support | Most browsers (legacy format) | All modern browsers (Chrome, Firefox, Safari 14+, Edge) |
| Color Depth | 16.7M (24-bit) | 16.7M+ (24/32-bit) |
| Typical Use | Windows legacy, uncompressed images | Web images (smaller than JPG/PNG with same quality) |
| Year Introduced | 1986 | 2010 |
Why Convert BMP to WEBP?
If you have BMP files destined for the web, WEBP is the optimal target. You'll get the smallest possible files with transparency support, making your content load faster.
How to Convert BMP to WEBP
Upload your BMP file.
KoalaPic converts to WEBP at your chosen quality.
Download your highly optimized WEBP file.
Quality Note
BMP to WEBP is the single most dramatic file size reduction available. A 6 MB BMP might become 50-100 KB as WEBP at quality 85%. The visual difference is negligible.