WBMP to HDR Converter

Switch from WBMP to HDR — simple online image conversion

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Effortless Process

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

Privacy Protected

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

Cross-Platform Access

Whether you are on a desktop, tablet, or phone — convert WBMP to HDR from any device with a modern web browser.

How to convert WBMP to HDR

1

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

2

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

3

Let the file convert and you can download your hdr 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
HDR (also known as RGBE or Radiance HDR) is a high-dynamic-range image format created by Greg Ward Larson as part of the Radiance lighting simulation system, developed at Lawrence Berkeley National Laboratory starting in 1985 with the HDR format emerging around 1989. The format stores floating-point RGB pixel values using a compact 32-bit-per-pixel encoding called RGBE (Red, Green, Blue, Exponent): three 8-bit mantissa bytes share a single 8-bit exponent, representing luminance values across a range of roughly 76 orders of magnitude while keeping file sizes comparable to standard 24-bit images. HDR files begin with a text header containing rendering and exposure metadata, followed by the RGBE pixel data compressed with a scanline-oriented run-length encoding scheme. The format captures the full luminance range of real-world scenes — from deep shadows to direct sunlight — enabling physically accurate lighting calculations, tone mapping to different display conditions, and post-capture exposure adjustment without the clipping artifacts inherent in 8-bit formats. One advantage is the format's foundational role in HDR imaging: Radiance HDR pioneered the concept of storing real-world luminance values in image files, and the .hdr format became the standard for light probe images and environment maps used in image-based lighting across the 3D rendering industry. The format's compact encoding is another practical strength — the RGBE scheme provides far more dynamic range than 8-bit formats while using only 33% more storage per pixel, a favorable tradeoff that made HDR practical on storage-limited systems of the late 1980s. HDR files are supported by Photoshop, GIMP, ImageMagick, Blender, and all major 3D renderers.
Developer: Greg Ward Larson
Initial release: 1989

Frequently Asked Questions

Why convert WBMP to HDR?

WBMP originated in WAP mobile phones and has narrow compatibility today. HDR offers high dynamic range image for lighting simulation — a far more practical choice for sharing.

What apps support HDR?

You can view HDR with Photoshop, GIMP, HDRShop, Luminance HDR, Blender. These tools cover all major desktop and mobile platforms.

Is WBMP to HDR conversion free?

You can convert WBMP to HDR for free on Convertio. Premium plans are available if you need higher throughput or larger file allowances.

Are my uploaded files kept private?

Yes — your WBMP files are deleted immediately after processing. The resulting HDR files are also removed from servers within 24 hours.

Can I convert multiple WBMP files to HDR at once?

Absolutely. Batch upload your WBMP images and convert them all to HDR in a single pass — no need to repeat the process for each file.

How long does WBMP to HDR conversion take?

Conversion is nearly instant for most WBMP files. Since these are small images, the entire process — upload to download — takes only moments.