WBMP's 1-bit-per-pixel structure was designed for the most basic early WAP mobile displays, with no color or grayscale capability whatsoever. AVIF, by contrast, supports up to 12-bit color and highly efficient AV1-based compression, but converting a WBMP file to AVIF doesn't unlock any of that capability for the actual image content — the original black-and-white data simply moves into a more modern, broadly supported container.
This conversion is mainly useful when a legacy mobile graphic needs to be archived or published using AVIF specifically for its compatibility with current web platforms, even though the underlying image remains as basic as it was in WBMP.
- Install Turbo Batch Image Converter Pro on your Windows PC.
- Open the app and select Batch Mode for multiple files, or Individual Mode for a single WBMP.
- Drag your WBMP file or folder into the app window, enabling recursive folder scanning if needed.
- Set the "From" format to WBMP and the "To" format to AVIF.
- Click Convert. AVIF files are written to your output folder, fully offline.
- 100% offline — your legacy mobile graphics are never uploaded anywhere
- Bulk conversion of entire folders, including sub-folders, in one pass
- Produces AVIF files with broad current browser and platform support
- Multi-core processing for fast handling of large batches
- Option to delete original WBMP files automatically once converted
- No recurring subscription or hidden upload limits
Will AVIF's color depth add detail to my WBMP image?
No, the original image only ever contained pure black-and-white data, so converting to AVIF doesn't add color or grayscale detail that wasn't captured in the source file.
Why convert to AVIF rather than a simpler format?
AVIF's broad current support and efficient compression make it a reasonable archival or publishing target, even though the underlying image content remains as basic as the original WBMP.
Can I convert an entire folder of WBMP files to AVIF at once?
Yes, Batch Mode handles entire folders, including nested sub-folders, in a single conversion run.
Ready to convert your images offline, in bulk, with full privacy?