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OptiScaler — Open-source graphics middleware allowing users to swap, configure, and enable DLSS, XeSS, FSR, and Frame Generation technologies across various GPUs in modern PC games.
🧠 OptiScaler is particularly interesting for PC gaming enthusiasts because it brings together technologies from NVIDIA, AMD, and Intel within a single project. 📈 The project has grown into a major open-source PC graphics project, with more than 12,000 GitHub stars and hundreds of forks as of October 2026.
OptiScaler is a graphics enhancement utility designed to provide additional flexibility when working with modern upscaling and frame-generation technologies in supported PC games.