Read and write
Move between OpenEXR, Radiance RGBE, Ultra HDR, and Adobe gain map JPEGs with a consistent API.
Explore →Transform with precision
Resize, flip, convert color spaces, and apply ACES, AgX, Khronos Neutral, or Reinhard tone mapping.
Explore →Run where you work
Use the core library in browsers, workers, and Node.js. Add React previews, a CLI, or editor integration.
Explore →A small API for a wide range
From encoded bytes to useful pixels.
Readers return a shared HdrifyImage: dimensions, floating-point RGBA pixels, and metadata. Transform it once, then choose your output format.
Pure JavaScript, TypeScript definitions, and tree-shakeable functions let you bring only the tools your application needs.
See complete code examples →Convert EXR to Radiance HDR
import { readExr, writeHdr } from 'hdrify';
const response = await fetch('/studio.exr');
const image = readExr(new Uint8Array(await response.arrayBuffer()));
// One floating-point RGBA image. Any supported output.
const radiance = writeHdr(image);
React
Display HDR images with HdrifyCanvas and control exposure and tone mapping.
Build a preview →Command line
Convert files, inspect metadata, and generate reference images from your terminal or scripts.
Use hdrify-cli →VS Code & Cursor
Preview HDR images and convert formats without leaving your editor.
Get the extension →