qsv

Why we included this project

qsv is a terminal-native data-wrangling toolkit for people who spend their days working with CSV, Excel, and other tabular files. Its composable commands cover the routine work: filtering, sorting, joining, deduplicating, validating, reshaping, and enriching. Because the core is written in Rust, the operations are genuinely fast. On top of the familiar xsv-style commands, it adds capabilities that are hard to find elsewhere, including offline geocoding against local Gazetteer and MaxMind databases and an LLM-powered describegpt command that builds data dictionaries, infers semantic field types, and answers natural-language questions about a dataset without sending the whole file to an API. For data engineers, analysts, and platform teams, that adds up to one dependable binary that can replace a pile of custom scripts.