Free online WEBP to BMP converter

A legacy Windows program, printer workflow, or image editor may require BMP instead of WEBP. Converting produces a bitmap that older software can open, but the resulting file is usually much larger.

What the WEBP format is

WEBP is an image format developed by Google for websites and applications. It supports lossy and lossless compression, transparency, and animation, so browsers, Android apps, content-management systems, and image-processing tools commonly create or serve .webp files.

WEBP often delivers comparable visual quality at a smaller size than JPEG or PNG. Older desktop programs, operating systems, printers, and embedded devices may not support it.

What the BMP format is

BMP is a raster bitmap format historically associated with Windows. Common BMP files store pixels without compression, although the format also permits limited compression variants. Its simple structure and broad support make it suitable for older image editors, print utilities, device drivers, and industrial or embedded software.

BMP provides predictable pixel access and avoids the additional image compression used by WEBP, but its files are often several times larger. A 24-bit BMP is widely compatible; 32-bit BMP can contain an alpha channel, but some applications ignore BMP transparency.

Convert with 101convert.com

1. Open the WEBP-to-BMP converter on 101convert.com.
2. Select or upload the .webp file.
3. Choose BMP as the output format and start the conversion.
4. Download the resulting .bmp file when processing finishes.

The conversion is free and runs in a browser without installing software.

Convert with desktop software

ImageMagick is suitable for command-line and batch conversion. To create a broadly compatible 24-bit-style BMP without transparency, use:

magick input.webp -alpha off -type TrueColor -depth 8 BMP3:output.bmp

Replace the input and output filenames as needed. For multiple files, create a separate output directory and run:

magick mogrify -path converted -format bmp *.webp

The converted directory must already exist, and mogrify leaves the original WEBP files unchanged when an output path is specified.

In a compatible image editor, open the source through File → Open, then use File → Export or File → Save As, select BMP, choose the color depth if prompted, and save. GIMP, Photoshop, Paint, IrfanView, and XnConvert can support this workflow, but WEBP and BMP support varies by software version and operating system. IrfanView is Windows-focused; XnConvert supports multiple desktop platforms.

Quality and compatibility limits

If the source WEBP uses lossy compression, converting it to BMP cannot restore detail that compression already discarded. The conversion normally retains the decoded image dimensions and visible pixels; it does not improve image quality.

Animated WEBP needs special handling because many converters export only its first frame. Standard BMP is not an equivalent animation format, so converting an animation to one BMP file loses the remaining frames.

For maximum compatibility, use a 24-bit BMP with no transparency. If the WEBP contains transparent pixels, use 32-bit BMP only when the receiving program explicitly supports BMP alpha. Otherwise, set a background color before export because unsupported transparency may appear as black, white, or another default color.