DockittDockitt

Convert WebP to BMP Online

Convert WebP images to uncompressed BMP format online — for legacy software compatibility.

Processed entirely in your browser — never leaves your device
No software needed — works in any modern browser
Fast — most conversions complete in under a second
Files up to 100MB supported
From
WEBPWebP▾
→
To
BMPBMP▾
✅Processed entirely in your browser. Your file never leaves your device — no upload, no server, complete privacy.
Drag & drop your WEBP file here or

BMP is required by some legacy Windows applications, industrial systems, and older software that cannot handle modern compressed formats. Converting a WebP to BMP produces an uncompressed bitmap that is accepted by virtually all Windows software. The BMP file will be much larger than the source WebP since no compression is applied. Dockitt handles the conversion entirely in your browser using the Canvas API.

How to use

  1. Click 'Choose WebP' and select the WebP image you want to convert.
  2. Click 'Convert to BMP' and wait while the image is processed.
  3. Download the BMP file.

FAQ

When would I need to convert WebP to BMP?

BMP is needed when working with legacy Windows applications, embedded systems, or industrial software that only accepts uncompressed bitmap images. For most modern workflows PNG or JPEG are better choices, but BMP remains necessary for certain older platforms.

Will the BMP file be much larger than the WebP?

Yes, dramatically larger. BMP stores every pixel without compression. A WebP file of 100KB can produce a BMP of 5–20MB depending on image dimensions. Make sure you have enough storage before converting large or high-resolution images.

What happens to transparency in my WebP?

BMP has limited transparency support. In most browsers, the Canvas API renders transparent areas against a default background (typically white or transparent depending on the implementation). If exact transparency in BMP is critical, use a dedicated image editor.

Is BMP supported outside of Windows?

BMP is primarily a Windows format. macOS and Linux can open BMP files with most image viewers, but native support varies. For cross-platform use, PNG or JPEG are more universally supported.

Why is the conversion slow for large WebP files?

BMP files are uncompressed, so the browser must write out every pixel individually. Large images generate very large BMP files, which takes more processing time and memory. This is inherent to the BMP format.

Is the conversion done in my browser or on a server?

The conversion runs entirely in your browser using the Canvas API. Your image is never uploaded to any server.