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high-dpi

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Images look blurry on a 4K/HiDPI screen over 100% display scaling, or on Retina? The browser upscales them with a cheap bilinear filter. This resamples them with a real Lanczos3 filter on the GPU instead. No third-party requests; nothing leaves your browser. Built for manga, comics, and webtoons, works anywhere.

  • Updated Aug 15, 2026
  • JavaScript

Windows Settings says '200%' and stops there. dpiscale shows what your apps actually see: the SAME Windows API returns 1620x1080 to a DPI-unaware app and 3240x2160 to an aware one, for one physical panel. Reports native vs virtualized resolution, effective/angular/raw DPI, and why OBS display capture comes out the wrong size. No admin.

  • Updated Sep 13, 2026
  • PowerShell

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