WBMP to SUN Converter

Convert WBMP images to SUN format quickly and easily online

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Effortless Process

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

Reliable Conversion

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

Lightning Fast

WBMP files are small and convert to SUN in seconds. The cloud-based engine handles the transformation quickly so you can download right away.

How to convert WBMP to SUN

1

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

2

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

3

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

About formats

WBMP (Wireless Bitmap) is a monochrome (1-bit, black and white) image format defined as part of the Wireless Application Protocol (WAP) specification, developed by the WAP Forum (later consolidated into the Open Mobile Alliance) around 1998. The format was designed for the extremely constrained mobile devices of the late 1990s and early 2000s — phones with small monochrome screens, minimal processing power, and narrow bandwidth GSM data connections. WBMP uses the simplest possible encoding: a type identifier byte (always 0 for the only defined type), width and height encoded as multi-byte integers using a variable-length scheme, and the raw pixel data where each bit represents one pixel (0 for white, 1 for black) packed eight per byte. There is no compression, no metadata, and no color — the format is purely a minimal container for delivering small monochrome graphics to WAP-era mobile browsers. One advantage was extreme efficiency on constrained devices — WBMP images could be decoded with virtually zero CPU overhead and minimal memory, critical on early mobile hardware running at single-digit megahertz clock speeds. The tiny file sizes are another strength: a typical WBMP icon occupied just a few hundred bytes, practical for transfer over 9.6 kbps GSM data channels. While the WAP ecosystem has been entirely superseded by modern mobile web browsers capable of rendering full-color JPEG, PNG, and WebP images, WBMP files remain encountered in archived mobile content from that transitional era.
Developer: WAP Forum
Initial release: 1998
SUN is a raster image format associated with Sun Microsystems workstations, encompassing both the Sun Raster format (.ras) and the Sun Icon format used for window system icons and cursors on SunOS and Solaris systems. Sun Raster files, identifiable by their 0x59a66a95 magic number, store bitmap images in 1-bit monochrome, 8-bit indexed color, 24-bit BGR, or 32-bit XBGR modes, with optional run-length encoding compression and a 32-byte header. The Sun Icon subset is a simpler text-based format used for small monochrome bitmaps — window icons, cursor images, and toolbar graphics — stored as C-language data arrays that could be directly compiled into X Window and SunView applications. These icon files begin with a comment block specifying width, height, and optionally hot spot coordinates (for cursor images), followed by hexadecimal pixel values in a format readable by both the C compiler and the iconedit tool. Sun workstations running SunOS and later Solaris were foundational platforms for Unix computing, networking, and the early internet, and the SUN image formats were integral to their graphical environments. One advantage is the format's dual text/binary nature: Sun Icons are valid C source code that can be #included directly into applications, a practical approach to resource embedding that predates modern asset management systems. The Sun Raster variant's simplicity provides another strength — the 32-byte header and straightforward encoding make it one of the easiest binary image formats to parse. SUN format files are supported by ImageMagick, GIMP, XnView, and Unix image viewing tools.
Developer: Sun Microsystems
Initial release: 1982

Frequently Asked Questions

Why convert WBMP to SUN?

WBMP originated in WAP mobile phones and has narrow compatibility today. SUN offers raster format from Sun Microsystems workstations — a far more practical choice for sharing.

What apps support SUN?

You can view SUN with ImageMagick, GIMP, XnView, IrfanView. These tools cover all major desktop and mobile platforms.

What exactly is the WBMP format?

The WBMP format is a monochrome bitmap from the WAP era for early mobile phones, rooted in WAP mobile phones. Modern software rarely supports it natively, making conversion essential.

Is my WBMP file safe when converting online?

Your files are secure. Uploaded WBMP images are erased immediately after processing, and SUN outputs are purged within 24 hours.

Is WBMP to SUN conversion free?

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

How long does WBMP to SUN conversion take?

Usually just seconds. WBMP files are typically small, so the upload, conversion, and download process finishes very quickly on Convertio.