BMP to XWD Converter

Online BMP to XWD conversion — free and straightforward

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Shed the Weight

Uncompressed BMP files waste storage — converting to XWD applies efficient encoding that can reduce file size by 80% or more.

No Install Needed

Convert BMP to XWD directly in your web browser — no desktop software, plugins, or extensions required on any platform.

Runs in the Cloud

All processing for BMP to XWD happens remotely on Convertio servers, keeping your own hardware free for other tasks.

How to convert BMP to XWD

1

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

2

Choose xwd or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your xwd file right afterwards

About formats

BMP (Bitmap) is a raster image file format developed by Microsoft for the Windows operating system, introduced with Windows 3.0 in 1990. The format stores pixel data in a straightforward structure: a file header specifying dimensions, color depth, and compression method, followed by an optional color palette and then the raw pixel array. BMP supports color depths from 1-bit monochrome through 4-bit and 8-bit indexed color to 16-bit, 24-bit true color, and 32-bit with alpha channel. Most BMP files store pixels uncompressed (BI_RGB), though optional RLE compression is available for 4-bit and 8-bit modes. Pixels are arranged in bottom-up row order by default, with each row padded to a 4-byte boundary. One advantage is absolute simplicity — the format has no complex encoding, filtering, or compression layers, making BMP files trivial to read and write programmatically in any language. This simplicity also means BMP images render with zero decoding overhead, useful in scenarios where decompression latency matters. The format's deep Windows integration is another strength: BMP is the native bitmap format for Windows GDI, clipboard operations, and device-independent bitmap (DIB) handling, ensuring first-class support across the entire Windows ecosystem. While BMP's lack of compression produces large files unsuitable for web use or storage-constrained environments, it remains widely used as an intermediate format in image processing, as a clipboard exchange format, and in embedded systems where decoding simplicity outweighs file size.
Developer: Microsoft
Initial release: 1990
XWD (X Window Dump) is a screen capture image format defined as part of the X Window System by the MIT X Consortium, dating to approximately 1987. The xwd command-line utility captures the contents of an X window or the entire screen and saves it as an XWD file — functionally equivalent to a screenshot utility but predating the concept by years. XWD files contain a detailed header specifying the X server's visual type, bit depth, byte order, bitmap unit and padding, the window's dimensions, border width, and color map information, followed by the raw pixel data exactly as represented in the X server's framebuffer. This means XWD files faithfully capture the exact pixel representation used by the display hardware — including server-specific byte ordering, padding, and color organization — making them primarily useful on the system where they were captured or on systems with compatible display configurations. The header also stores the window name string and the full color map entries for indexed-color visuals. XWD supports all X11 visual types: StaticGray, GrayScale, StaticColor, PseudoColor, TrueColor, and DirectColor, at any bit depth supported by the X server. One advantage is exact framebuffer fidelity: XWD captures the window's pixel data in its native format without any color space conversion or compression, making it the definitive record of what the X server was actually displaying. The format's integration with the X11 command-line toolkit provides another practical benefit — xwd can capture specific windows by ID or name, be triggered remotely via SSH, and piped directly to format converters. XWD files are handled by ImageMagick, GIMP, xwud (the viewer companion to xwd), and xv.
Developer: MIT X Consortium
Initial release: 1987

Frequently Asked Questions

Why convert BMP to XWD?

X Window Dump stores your BMP as an X11 capture — compatible with xwud and Unix X Window display and debugging utilities.

How do I open XWD files?

xwud viewer, GIMP, ImageMagick, XnView. Most modern operating systems also have built-in support or free viewer options available.

What happens to my uploaded files?

Your BMP files are automatically deleted right after conversion. The resulting XWD files remain available for download for 24 hours, then they are permanently removed.

Can I convert BMP to XWD for free?

Yes — Convertio offers free BMP to XWD conversion. For professional volumes and larger files, premium plans provide expanded limits and priority processing.

Does this work on mobile devices?

Yes — the BMP to XWD converter works in any mobile browser on iOS and Android. No app installation is needed — just open convertio.tools and upload your file.

How long does BMP to XWD conversion take?

Most conversions complete within seconds. Processing time depends on file size and server load, but the entire workflow typically finishes in under a minute.

BMP to XWD Quality Rating

5.0 (5 votes)
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