StereoCrafter is an application that converts monocular videos to stereoscopic 3D videos using a two-stage diffusion-based pipeline. The first stage estimates depth via DepthCrafter and generates a right-eye view through forward warping. The second stage refines the stereo video using a fine-tuned Stable Video Diffusion model with spatial tiling for high-resolution processing. The system relies on external dependencies including DepthCrafter and Forward-Warp submodules, and requires manual download of model weights. The codebase demonstrates modular design with clear separation between depth estimation, warping, and inpainting stages.