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st2084

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A blazing-fast, privacy-first, zero-upload client-side HDR PNG converter — turn any ordinary sRGB image into a true high-dynamic-range PNG with PQ (ST 2084) transfer, Rec.2020 wide-gamut color, and HDR10-compatible cICP/cHRM/iCCP metadata, entirely in your browser. Powered by Preact, Vite, and a persistent Web Worker pipeline.

  • Updated Apr 18, 2026
  • TypeScript

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