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WBMP to FB2 Converter

Convert WBMP images to FB2 e-book format online

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No Install Required

The entire WBMP to FB2 conversion happens in your browser. No plugins, no desktop apps — just upload, convert, and download.

Cloud Conversion

All WBMP to FB2 processing runs on Convertio servers — your device stays fast and free while the conversion happens in the cloud.

Privacy Protected

Your WBMP files are deleted immediately after conversion to FB2. Converted files are automatically removed from servers within 24 hours.

How to convert WBMP to FB2

1

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

2

Choose fb2 or any other format you need as a result (more than 200 formats supported)

3

Let the file convert and you can download your fb2 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
FB2 (FictionBook) is an XML-based ebook format created by Dmitry Gribov in 2004, designed to provide a clean semantic description of a book's content independent of its visual presentation. Unlike page-layout formats, FB2 encodes structure — title, authors, chapters, annotations, genres, epigraphs, poems, footnotes, and binary attachments (typically cover images) — within a single well-formed XML document. This structural approach means reading applications have full control over rendering, allowing the same file to adapt perfectly to a small phone screen or a large e-ink reader. FB2 became enormously popular in Russia and Eastern Europe, serving as the dominant format on major Russian digital libraries and ebook distribution platforms. One significant advantage is metadata richness: the format's schema mandates detailed bibliographic information including author, translator, series position, publication date, and genre classification, making library management and discovery straightforward. The plain-text XML foundation is another strength — FB2 files are human-readable, easy to validate, and simple to transform using standard XML tools like XSLT. The format specification is freely available on GitHub, and a wide ecosystem of readers, editors, and converters supports it across all major platforms, from desktop applications like Calibre to dedicated e-readers with native FB2 rendering.
Developer: Dmitry Gribov
Initial release: 2004

Frequently Asked Questions

Why would I convert WBMP to FB2?

FB2 (XML-based e-book format popular in Russia) lets you include WBMP graphics in e-book collections, accessible on dedicated readers and mobile apps.

How do I open a FB2 file?

Software that handles FB2 includes FBReader, Calibre, CoolReader, Moon+ Reader — giving you options on every major operating system.

What exactly is the WBMP format?

WBMP is a monochrome bitmap from the WAP era for early mobile phones. Originally from WAP mobile phones, it has become a legacy format — conversion is the most practical way to use these images today.

Is my WBMP file safe when converting online?

Yes — Convertio deletes uploaded files right after conversion. Converted files are removed from servers within 24 hours for complete privacy.

Does converting WBMP to FB2 affect quality?

Your image content stays intact during conversion. Any differences depend on FB2 characteristics — such as color depth or compression method.

What platforms support this WBMP converter?

Convertio is entirely web-based. Convert WBMP to FB2 from Chrome, Firefox, Safari, Edge, or any modern browser on any operating system.