The OpenHDR Viewer allows HDR images to be viewed natively in a browser. Multiple tone-mappers are provided and the image can be saved as a JPEG or PNG. Features: * Load Open EXR and Radiance HDR images in a browser. * Tone-map using multiple tone-mappers such as Erik Reinhard's Photographic TMO and ACES. * Parameterised tone-mappers allowing interactive control of LDR representation. * Export in LDR as JPEG or PNG. * Download original HDR. * Share link to interactive, tone-mapped HDR. * Histogram with RGB values and swatch. * Preview HDR files in Google Drive (once opened with the Viewer).