Why convert WebP to BMP?

WebP already handles compression and transparency well; you'd only reach for BMP because a specific legacy Windows application, embedded system, or print pipeline is hard-coded to expect an uncompressed .bmp file, not because BMP offers anything WebP lacks.

Does BMP output keep transparency?

No. WebP can carry a full alpha channel, but BMP has none — transparent pixels from the source are flattened onto a white background before the file is written.

Why is the BMP file so much larger than my WebP?

WebP's whole design is compact lossy or lossless compression; BMP is written here as uncompressed 24-bit RGB (BITMAPINFOHEADER, BI_RGB), so the size advantage WebP had is gone and the BMP is typically several times larger.

What happens if my WebP is animated?

Only the first frame is converted to BMP; the animation itself and every other frame are dropped. Most WebP files online are static single-frame images, so this mainly matters for animated WebP exports.

Are my files uploaded?

No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.

What is validated before conversion?

The file must actually be a WebP — the tool checks the RIFF/WEBP signature bytes, not just the filename or extension, before decoding.

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WebP to BMP Converter

Convert WebP images to BMP directly in your browser — a widely recognized uncompressed bitmap format for older Windows software and compatibility workflows.

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WebP to BMP processes files locally in your browser.

What WebP to BMP conversion does

Convert a WebP image to BMP directly in your browser. WebP supports full alpha transparency and both lossy and lossless compression, but BMP understands none of that — it's a plain 24-bit uncompressed bitmap with no alpha channel — so this conversion trades WebP's modern feature set for the raw compatibility BMP still gets from legacy Windows software and simple print pipelines.

How to convert WebP to BMP

Choose a WebP file.
Select Convert & download.
Save the .bmp file from your browser downloads.

Why use this conversion

You'd reach for BMP specifically because some legacy Windows application, kiosk system, or print pipeline is hard-coded to expect an uncompressed .bmp file — not because BMP offers anything WebP doesn't already do better.

Transparency and output quality

WebP's alpha channel does not survive this conversion: BMP has no alpha channel at all, so any transparent pixel in the source is flattened onto a white background before the file is written. WebP is a compact, well-compressed format; BMP here is written as uncompressed 24-bit RGB, so the output is almost always dramatically larger than the WebP source — often several times the size for an equivalent photo.

Privacy and local processing

Processing occurs locally in the browser.
Files are not uploaded to Looty Tools for conversion.
Converted files remain on your device.

Limits and known issues

Input: WebP (.webp) only, up to 25.0 MB and 8,192 px per side.
BMP output never carries transparency in this tool — if the source WebP has alpha you need to keep, convert to TIFF, ICO, or QOI instead.
If the source WebP happens to be animated, only its first frame becomes the BMP; the rest of the animation is discarded. Most WebP files online are static, so this mainly affects animated exports.
Metadata is not preserved in the downloaded file.

Related tools

Guides

WebP to BMP FAQ

Why convert WebP to BMP?: WebP already handles compression and transparency well; you'd only reach for BMP because a specific legacy Windows application, embedded system, or print pipeline is hard-coded to expect an uncompressed .bmp file, not because BMP offers anything WebP lacks.
Does BMP output keep transparency?: No. WebP can carry a full alpha channel, but BMP has none — transparent pixels from the source are flattened onto a white background before the file is written.
Why is the BMP file so much larger than my WebP?: WebP's whole design is compact lossy or lossless compression; BMP is written here as uncompressed 24-bit RGB (BITMAPINFOHEADER, BI_RGB), so the size advantage WebP had is gone and the BMP is typically several times larger.
What happens if my WebP is animated?: Only the first frame is converted to BMP; the animation itself and every other frame are dropped. Most WebP files online are static single-frame images, so this mainly matters for animated WebP exports.
Are my files uploaded?: No. Conversion runs locally in your browser and does not upload your file to Looty Tools servers.
What is validated before conversion?: The file must actually be a WebP — the tool checks the RIFF/WEBP signature bytes, not just the filename or extension, before decoding.