Convert to HDR
Convert images to Radiance HDR format — free, private, runs entirely in your browser.
Drop files here or click to browse
Supported formats: BMP, DDS, GIF, HDR, ICO, JPEG, KTX, PGM, PIC, PNG, PPM, PSD, TGA, WebP
Folder
No data transfer — all data stays on your device!
About the HDR Format
HDR (High Dynamic Range), also known as Radiance RGBE, is an image format designed to store lighting information that exceeds the standard 8-bit-per-channel range. Developed by Greg Ward for the Radiance rendering system, HDR files use a compact encoding that represents each pixel with three 8-bit mantissas and a shared 8-bit exponent. This enables storage of a much wider range of luminance values — from deep shadows to bright highlights. HDR images are essential in computer graphics for environment mapping, image-based lighting, and photographic tone mapping workflows.
Features
Environment Friendly
Your online activities come with a cost. The same goes for converting images. These activities produce carbon emissions. We have to control the amount of these emissions to prevent drastic future climatic change. The tool cares about your carbon footprint to help save the globe from the environmental crisis.
Install to Use Offline!
Thanks to newest browser features, you can install WebConverter! Simply click "Add to Homescreen" on your smartphone or click install in the top navigation bar on your desktop. Done, no download needed.