Flowframes

Flowframes is a sophisticated Windows-based GUI for AI video frame interpolation, built upon the VapourSynth engine. It leverages state-of-the-art neural networks including RIFE (Real-Time Intermediate Flow Estimation), FLAVR, and DAIN to generate synthetic frames between existing ones, effectively increasing video framerates with minimal artifacts. As of 2026, it remains the industry standard for creators seeking to convert 24fps or 30fps content to buttery-smooth 60fps or higher, and for producing high-fidelity slow-motion sequences. The architecture is highly optimized for hardware acceleration, utilizing NVIDIA CUDA (via TensorRT) and Vulkan to handle high-resolution 4K and 8K workflows. Its technical edge lies in its robust scene-change detection and frame deduplication logic, which prevents the 'ghosting' common in traditional optical flow methods. Flowframes serves a critical niche in the post-production market, bridging the gap between hobbyist tools and expensive enterprise motion-estimation software. Its open-source core combined with a low-cost, high-performance installer makes it the primary choice for animators, game videographers, and archival restoration specialists.