VisiLens solves the dilemma between slow Excel and complex Pandas code. It is a local-first, zero-config data explorer. What's different: Speed & Scale: Opens 1M+ rows in ~1.7s by streaming data from the VisiData engine. Privacy: Runs 100% locally via FastAPI/React. Your data never leaves your machine. Usability: Provides a modern, mouse-friendly web GUI (sorting, filtering) for quick exploration without needing to memorize CLI shortcuts.