BMP to WebP Converter
Make BMP artwork easier to share as WebP.
Converted in your browser. Your file never leaves your device.
Drop your BMP files here
or drag and drop · 50 MB per file
How to convert BMP to WebP
- Choose BMP files up to 50 MB each.
- Choose output quality and the available transparency settings.
- Download the WebP output and review the conversion report.
Where this file comes from
Windows Paint, scanners, older graphics programs and desktop utilities often export BMP files.
What changes in the conversion
BMP pixels are re-encoded with lossy WebP compression at the selected quality. Transparency is kept when supported by the source BMP decoder. Dimensions stay the same; bitmap container metadata is removed. Unusual BMP variants depend on browser decoding support.
Size limits and browser notes
- Accepts .bmp, .dib files up to 50 MB each.
- You can convert several files at once; they download together as one ZIP.
- Everything runs in your browser, so very large files depend on your device's memory.
Browser decoding support determines which source variants work. The original file is preserved. Very large images can exceed device memory.
FAQ
Will the output always be smaller?
Photos and large uncompressed bitmaps often get smaller, but small or simple graphics can be larger. The result shows both file sizes; compare the output before replacing an original.
Does the file leave my device?
No. Processing runs in your browser, with required code loaded from this site. Files are not uploaded.
What is kept or removed?
BMP pixels are re-encoded with lossy WebP compression at the selected quality. Transparency is kept when supported by the source BMP decoder. Dimensions stay the same; bitmap container metadata is removed. Unusual BMP variants depend on browser decoding support.
Related tools
See every tool on the Image Converter page.