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How to Convert WebP to BMP - Step by Step Guide

Step 1

Upload Your WebP Image

Start by uploading your WebP image. WebP is Google's modern image format with excellent compression:

Click to upload: Click the upload area or "Upload" button to select your WebP file
Drag and drop: Drag your WebP image directly into the upload area
Try the sample: Click "Sample" to see demo conversion
Privacy guaranteed: Processing happens in your browser - files never uploaded
Step 2

Preview Your Image

Once uploaded, you'll see a preview of your WebP image. The converter will display:

Image preview: Visual preview of your WebP image
File information: Original file name and size
Image dimensions: Width and height in pixels
Transparency check: If your WebP has transparency, note that BMP doesn't support it
Step 3

Automatic Conversion

The conversion happens automatically and instantly after upload using the HTML5 Canvas API. No convert button needed!

Instant decompression: WebP converted to uncompressed BMP
Quality maintained: Pixel-perfect conversion
Transparency handling: Transparent areas become white background
Local processing: Everything happens on your device

Understanding BMP Format

BMP (Windows Bitmap) characteristics as explained by MDN Web Docs:

Uncompressed: Stores raw pixel data without compression
Large files: Typically 10-20× larger than WebP
Windows native: Native format for Windows Paint
No transparency: Cannot store alpha channel
Step 4

Download Your BMP

Once conversion is complete (automatic!), you have these options:

Download as BMP: Click "Download" to save your uncompressed image
Copy to clipboard: Click "Copy" for quick usage
Edit in Paint: Open directly in Windows Paint for modifications
Convert more: Use "Clear" button to process another WebP

⚠️ File Size Warning

BMP files will be much larger than WebP:

1920×1080 WebP:0.3 MB
Same as BMP:6.2 MB
File increase:2000%+ larger!

Only convert to BMP if you specifically need it for Windows applications or editing in Paint.

Frequently Asked Questions

Why would I convert WebP to BMP?

The main reasons are: editing in Windows Paint (BMP is its native format), compatibility with legacy Windows software, or needing uncompressed raw pixel data. For most modern uses, WebP is better. Learn more about WebP format.

What happens to transparent WebP areas?

BMP doesn't support transparency, so any transparent areas in your WebP will be converted to a solid white background. If you need to preserve transparency, keep your image in WebP format or convert to PNG instead. Check WebP browser support.

Will the BMP file be much larger?

Yes, dramatically! BMP files can be 20× or more larger than WebP because BMP stores uncompressed pixel data while WebP uses Google's advanced compression. A 300 KB WebP might become a 6 MB BMP. Only convert if you specifically need BMP format.

Can I edit BMP in Windows Paint?

Yes! BMP is the native format for Windows Paint, making it perfect for quick edits. However, modern versions of Paint also support WebP, so you may not need to convert at all. After editing in Paint, you can use our BMP to WebP converter to compress it again.

Is any quality lost when converting WebP to BMP?

No, the conversion is lossless and pixel-perfect. Both WebP and BMP can store the same color data. The only difference is that WebP compresses the data while BMP doesn't. The visual quality remains identical according to W3C graphics standards.

Should I use BMP for websites?

No, never! BMP files are far too large for web use and will slow down your site dramatically. Always use WebP, PNG, or JPG for web images. BMP is only suitable for Windows desktop applications, Paint editing, or legacy software compatibility. WebP is the modern web standard recommended by web.dev.