CUR to XBM Converter

Online CUR to XBM converter — no install needed

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Format Versatility

Beyond XBM, Convertio supports dozens of output formats for your CUR files. One tool handles all your conversion needs.

Cursor Art Extracted

The cursor image inside CUR is extracted cleanly into XBM format — hotspot data is stripped, pure image remains.

Quick Turnaround

Fast processing means your XBM file is ready moments after uploading the CUR source. No queues or delays for standard jobs.

How to convert CUR to XBM

1

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

2

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

3

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

About formats

CUR is the cursor image format for Microsoft Windows), structurally nearly identical to the ICO (icon) format but with the addition of a hotspot coordinate that identifies the precise pixel position where mouse clicks register. Introduced with early Windows versions, CUR files use the same container structure as ICO: a directory header listing one or more image entries, each specifying dimensions and color depth, followed by the pixel data for each variant. Like ICO, a single CUR file can contain multiple images at different sizes and color depths, allowing Windows to select the most appropriate cursor image for the current display resolution and color settings. Image data within CUR files can be stored as BMP pixel arrays (for legacy compatibility) or as embedded PNG images (supported since Windows Vista) for alpha-blended cursors with smooth edges. The hotspot coordinate — the distinguishing feature separating CUR from ICO — is stored as an X,Y pair in the directory entry header, typically pointing to the tip of an arrow or the center of a crosshair. One advantage is multi-resolution packaging: a single CUR file provides appropriate cursor imagery across display densities from standard DPI to high-DPI screens. Native Windows integration is another strength — CUR files are loaded directly by the operating system for mouse cursor) display without any third-party software. CUR files are used by application developers and theme creators to customize the pointing experience across Windows environments.
Developer: Microsoft
Initial release: 1987
XBM (X BitMap) is a monochrome (1-bit) image format defined as part of the X Window System, originating at MIT around 1987. XBM files are unique among image formats in being valid C source code: each file defines the image as a static array of unsigned char values containing the packed pixel data, preceded by #define statements specifying the image width, height, and optional hot-spot coordinates (for cursor images). The pixel data is stored in hexadecimal byte values within curly braces, with each bit representing one pixel (1 = foreground, 0 = background) and bits ordered LSB-first within each byte. This design was intentional — XBM images could be #included directly into X Window application source code and compiled into the binary, eliminating the need for external file loading and runtime format parsing. The format was used throughout the X11 ecosystem for cursor shapes, window icons, toolbar buttons, and other small UI elements. One advantage is the source-code nature of the format: XBM files can be edited with a text editor, diff'd and merged in version control, generated by shell scripts, and compiled directly into C programs without any image loading library — a level of toolchain integration that no binary image format can match. The format's role as part of the X Window standard ensures it is understood by every X11-aware toolkit and application. While limited to monochrome and no compression, XBM's simplicity makes it an excellent teaching format for understanding bitmap representations. XBM files are supported by all X11 applications, ImageMagick, GIMP, web browsers (as a legacy web format), and programming environments.
Developer: MIT X Consortium
Initial release: 1987

Frequently Asked Questions

Why convert CUR to XBM?

Archiving or cataloging cursor collections is easier in XBM, which any gallery or thumbnail viewer can display.

What programs open XBM files?

GIMP, ImageMagick, web browsers (as inline images), and X Window System applications open XBM files

Is my CUR file safe during conversion?

Uploaded files are processed securely and deleted after conversion. Downloaded results are removed from servers within 24 hours.

Does this converter work on mobile devices?

Absolutely. The browser-based converter runs on phones and tablets — iOS, Android, or any device with a modern browser handles it fine.

How fast is CUR to XBM conversion?

Most conversions complete within seconds. Larger or more complex files may take slightly longer, but processing happens on fast cloud servers.

Does the conversion preserve transparency?

XBM does not support transparency natively. Alpha channel data from CUR will be flattened against a solid background during conversion.

CUR to XBM Quality Rating

4.1 (11 votes)
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