WBMP (Wireless Bitmap) is a strictly 1-bit-per-pixel format with no grayscale or color support at all, designed for the extremely limited displays of early WAP mobile phones. Converting a full-color ICO file directly to WBMP represents a dramatic reduction, collapsing all of that color and transparency data down to pure black-and-white pixels.
This conversion is rarely needed today and is mainly relevant for compatibility with specific legacy mobile or embedded display systems that still require WBMP input for simple icon-style graphics, where compatibility matters more than preserving any of the original design's color detail.
- Install Batchify Image Converter and Resizer Pro on your Windows PC.
- Open the app and select Batch Mode for multiple files, or Individual Mode for a single ICO.
- Drag your ICO file or folder into the app window, enabling recursive folder scanning if needed.
- Set the "From" format to ICO and the "To" format to WBMP.
- Click Convert. WBMP files are written to the output folder, fully offline.
- 100% offline — your icon and logo files are never uploaded anywhere
- Produces standard 1-bit WBMP files for legacy mobile and embedded systems
- Bulk conversion of entire folders, including sub-folders, in one click
- Multi-core processing for fast handling of large batches
- Option to delete original ICO files automatically after conversion
- No recurring subscription or hidden upload limits
Why does my converted WBMP look so different from the original icon?
WBMP is a strictly black-and-white, 1-bit-per-pixel format with no grayscale or color support, so all the color and detail from your icon is reduced to pure black or white pixels.
What devices or systems use WBMP today?
WBMP was designed for early WAP mobile phones and is now mainly relevant to specific legacy mobile or embedded display systems that still expect this format.
Will my icon still be recognizable after converting to WBMP?
Simple, high-contrast icons with clear shapes tend to convert more recognizably than detailed designs with subtle color variation, since WBMP has no way to represent intermediate shades.
Ready to convert your images offline, in bulk, with full privacy?