XWD to ICO Converter

Quick XWD to ICO image conversion — fully browser-based

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Effortless Process

Converting XWD to ICO takes just a few clicks — no technical knowledge required. Upload, choose your format, and download the result.

Cloud Conversion

All XWD to ICO processing runs on Convertio servers — your device stays fast and free while the conversion happens in the cloud.

Reliable Conversion

Convertio handles the XWD to ICO transformation accurately, preserving your image content while delivering a widely compatible output.

How to convert XWD to ICO

1

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

2

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

3

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

About formats

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
ICO is the icon file format for Microsoft Windows, introduced with Windows 1.0 in 1985 and serving as the standard container for application icons, file type icons, and shortcut icons throughout the Windows ecosystem. An ICO file bundles multiple image variants within a single container — each at different sizes (16x16, 32x32, 48x48, 256x256, and others) and color depths (4-bit, 8-bit, 24-bit, 32-bit with alpha) — allowing Windows to select the most appropriate image for each display context, from tiny taskbar buttons to large desktop icons. The container structure consists of an ICONDIR header, an array of ICONDIRENTRY records describing each variant, and the image data itself. Since Windows Vista, ICO files support embedded PNG-compressed images for the larger sizes (typically 256x256), dramatically reducing file size while maintaining quality with full alpha transparency. One advantage is automatic size adaptation — Windows pulls the optimal resolution from the ICO container for each context (Explorer list view, desktop tile, Alt-Tab preview), ensuring crisp display without the application managing separate image files. The format's operating system-level integration is another core strength: ICO files serve as the identity mechanism for executables, file associations, and shortcuts across all Windows versions, and web browsers use favicon.ico for website identity in tabs and bookmarks. ICO creation and editing is supported by image editors like GIMP, Inkscape, and dedicated icon tools, and the format remains essential for Windows application development.
Developer: Microsoft
Initial release: 1985

Frequently Asked Questions

What is the reason to convert XWD to ICO?

Few modern tools handle XWD natively. ICO provides icon format for Windows applications and websites, making it widely recognized across operating systems and applications.

What programs open ICO files?

Open ICO using Windows Explorer, web browsers (as favicon), IrfanView, GIMP. Cross-platform support means you can access these files on virtually any system.

What exactly is the XWD format?

The XWD format is a screen capture format from X Window System, rooted in Unix/X11 screenshots. Modern software rarely supports it natively, making conversion essential.

Can I convert multiple XWD files to ICO at once?

Yes — upload several XWD files in one session and Convertio processes them all into ICO simultaneously, saving you time.

Is XWD to ICO conversion free?

Yes — Convertio offers free XWD to ICO conversion. Premium options exist for users who need more capacity or faster processing speeds.

Does converting XWD to ICO affect quality?

Quality is maintained to the extent ICO supports. Since XWD is a screen capture format from X Window System, the visual data transfers cleanly to ICO.