ABW to WBMP Converter

Convert ABW to WBMP online — wireless bitmap free

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Mobile Legacy Support

WBMP works on WAP-era mobile devices — bring your ABW content to legacy platforms that need wireless bitmap.

Instant Results

WBMP is a minimal format — conversion from ABW completes almost instantly on our cloud servers.

Secure Handling

ABW uploads are deleted after conversion. WBMP outputs are automatically removed within 24 hours.

How to convert ABW to WBMP

1

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

2

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

3

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

About formats

ABW is the native document format of AbiWord, a free and open-source word processor originally developed by AbiSource in 1998 and later maintained as part of the GNOME Office suite. The format stores document content as well-formed XML, describing paragraphs, character formatting, page layout, headers and footers, tables, lists, footnotes, and embedded images in a human-readable structure. ABW files use a straightforward markup where document sections map to XML elements with attribute-based styling, making the format transparent and easy to parse programmatically. AbiWord was designed as a lightweight alternative to heavyweight office suites, running efficiently on older hardware and resource-constrained systems while still providing core word processing functionality. One advantage is the clean XML foundation — ABW files can be inspected, transformed, and generated using standard XML tools and scripting languages without requiring the AbiWord application itself. The lightweight nature of both the format and its parent application is another practical strength: AbiWord and its ABW format are commonly found on Linux distributions targeting older computers and educational deployments in developing countries through projects like OLPC. ABW files can be converted to mainstream formats like DOC, ODT, and PDF through AbiWord's built-in export or through document conversion tools.
Developer: AbiSource
Initial release: 1998
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

Frequently Asked Questions

What is WBMP format?

WBMP (Wireless Bitmap) is a monochrome image format designed for early WAP-enabled mobile devices and browsers.

Why convert ABW to WBMP?

WBMP is needed for legacy mobile WAP pages and devices that only support the wireless bitmap image format.

Is WBMP still used?

Rarely — WBMP is a legacy format from the early mobile web era. It is mainly relevant for retro compatibility.

Is ABW to WBMP conversion free?

Standard conversions are free. Premium plans offer faster speeds and expanded capacity.

Will text be readable in WBMP?

WBMP is monochrome (black and white only), so text may appear simplified but should remain legible.

Can I convert several files?

Upload multiple ABW files at once — each converts to WBMP independently for individual download.