bhouston

bhouston / hdrify

Public

Read/write HDR, EXR and UltraHDR JPGs (Gain maps), includes tone mapping and color space support.

hdrify.benhouston3d.com cli colorspace conversion exr gainmaps
25
3
100% credibility
Found Feb 17, 2026 at 20 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

Pure JavaScript library for reading and writing high dynamic range image formats like EXR, Radiance HDR, and JPEG gain maps, with a web demo and command-line tool.

How It Works

1
🌐 Discover HDRify

You find a free online tool to view and convert high-brightness photos like HDR and EXR files.

2
🖼️ Drop your photo

Drag your bright HDR or EXR image onto the page and watch it light up instantly.

3
🔧 Tweak the look

Slide to adjust brightness or pick a style to make details pop perfectly on your screen.

4
Ready to save?
📱
Quick JPG

Save as compact phone-friendly file that still holds HDR magic.

🖥️
Full EXR/HDR

Keep all the brightness for pro editing software.

5
⚡ One-click CLI

Install the simple command tool to batch-convert folders of photos.

🎉 Bright photos anywhere

Your images shine beautifully on any device or software, no more washed-out lights!

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Star Growth

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AI-Generated Review

What is hdrify?

HDRify lets developers read and write HDR images in Radiance RGBE, OpenEXR, and UltraHDR JPGs with gain maps, all in pure TypeScript that runs in Node or browsers. It handles tone mapping like ACES or AgX, color space conversions, and spits out a universal FloatImageData format for easy processing. No native bindings needed—perfect for HDR workflows without read write github hassles.

Why is it gaining traction?

Pure JS read/write for EXR (PIZ/ZIP/RLE), HDR, and gain map JPGs beats heavy alternatives, with compact encoding that shrinks HDR to web-friendly sizes. Includes a CLI for convert/info/reference commands, plus a drag-and-drop web demo for quick color mapping and gain maps testing. Tree-shakeable design keeps it lightweight for frontend bundles.

Who should use this?

Web graphics devs loading HDR/EXR into Three.js canvases, game asset pipelines needing gain map JPGs for mobile, or backend teams batch-converting via CLI for tone mapping and read write permissions github actions.

Verdict

Grab it for JS HDR experiments—CLI shines for jpgs/exr conversions, tests/coverage are strong despite 19 stars and 1.0% credibility. Early maturity means prototype carefully, but docs and demo lower the barrier.

(198 words)

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