BMP to WebP
Convert heavy BMP bitmaps to WebP for the smallest files — ideal for the web. Free, fast and secure, no sign-up. Everything runs locally in your browser and your file is never uploaded.
Drag & drop or click to select filesMultiple images · up to 100 MiB per file
3 numbered images + 1 damaged file. A real processing example.
Images are processed in this tab. Download your results before closing or refreshing.
Your finished images will appear here.
Check each image, its dimensions and file size before downloading.
Frequently asked questions
BMP is barely compressed, so it loads slowly, eats bandwidth, and many sites reject it. WebP is far smaller at the same quality and is the modern standard for images on the web.
Yes. Every major browser — Chrome, Edge, Firefox and Safari — has supported WebP for years, so it's safe to use on websites.
Updated · image cat team