Batch convert WEBP images to BMP format. 100% browser-based, no uploads, no limits.
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Accepts WEBP files
Files stay on your device. Nothing sent to any server.
Process hundreds of images at once with no limits.
WebP files are 25–35% smaller than JPEG or PNG.
BMP is a legacy format that some Windows applications and specialized tools require as input. Converting WebP to BMP gives you an uncompressed, pixel-perfect raster image that is compatible with any software that accepts BMP — no matter how old or specialized.
WebP is Google's modern web image format, released in 2010. It uses advanced compression to produce files that are 25–35% smaller than JPEG and up to 80% smaller than uncompressed formats, while maintaining excellent visual quality. WebP is the recommended format for images served on the web.
Despite its advantages, WebP support in non-browser environments remains inconsistent. Some legacy Windows applications, machine vision tools, industrial software, and specialized image processing pipelines require uncompressed BMP input and cannot process WebP files directly.
Converting WebP to BMP bridges this gap — taking a modern, compressed web image and producing an uncompressed raw bitmap that is understood by any software capable of working with images, regardless of age or platform.
BMP (Bitmap Image File) is Microsoft's original native image format, introduced with Windows 1.0 in the mid-1980s. It stores image data as a straightforward pixel grid with no compression — each pixel is stored as its full RGB color value. This makes BMP files an exact, unambiguous representation of the image.
Because BMP is uncompressed, files are significantly larger than modern formats. A 1920×1080 image stored as BMP takes approximately 6 MB, compared to 200–400 KB for an equivalent WebP. This makes BMP impractical for web use, but it also makes it a reliable format for applications that need precise pixel access.
BMP is still used in some Windows applications, manufacturing tools, embedded system interfaces, and legacy software where its simplicity and lack of compression are actually desirable properties. For these specialized use cases, BMP remains the most compatible and straightforward image format available.
BMP files are uncompressed, so they are typically 10–20× larger than equivalent WebP files. A WebP image of 300 KB could become a 3–6 MB BMP file. This is expected — BMP stores every pixel with no compression.
No additional quality is lost when converting to BMP. BMP stores every pixel exactly as rendered, so the output is a lossless copy of the image data. If the original WebP was lossy, any compression artifacts from the WebP will be present in the BMP — but no new quality loss is introduced.
BMP is primarily used by legacy Windows applications, older versions of Microsoft Paint, some industrial and manufacturing software, machine vision systems, and embedded hardware interfaces. If your application specifically requires BMP input, this converter provides a straightforward way to produce compatible files.
WebP is a modern image format developed by Google that provides superior compression for images on the web. It supports both lossy and lossless compression.
Yes! When you upload an image, it never travels to any server — not ours, not anyone else's. Everything happens inside your own browser using your device's processing power. Think of it like using a calculator: the math happens on the device in your hand, not somewhere in the cloud.
You can convert JPEG, PNG, GIF, BMP, SVG, AVIF, and ICO files to WebP format using our converter.