dathere/qsv

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

3767 stars · 106 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

qsv is a blazing-fast, Rust-based command-line data-wrangling toolkit with 50+ composable commands for querying, transforming, validating, enriching, and analyzing tabular data (CSV, Excel, JSON, Parquet, etc.). It leverages Polars for CPU-accelerated processing of very large datasets and includes an MCP server for AI integration.

Use cases

• clean and validate messy csv files from the command line
• convert excel spreadsheets to csv or jsonl
• run sql queries against csv files without a database
• profile and compute statistics on large datasets
• deduplicate and sort huge csv files fast
• geocode and enrich open data tables
• prepare and FAIRify datasets for data portals
• join and transform csv data in etl pipelines

When to choose

• you need fast, scriptable csv/tabular data processing without writing code
• you're building data pipelines that need composable CLI commands
• you work with open data, CKAN portals, or large messy files
• you want SQL, Luau, or Python scripting built into a data toolkit

When to avoid

• you need interactive GUI-based data exploration or spreadsheet editing
• your data is primarily unstructured text, images, or binary
• you need a full dataframe library API inside Python or R rather than a CLI

Facets

cli-tool · maturity active

etl data-science search-engine parser math data-visualization mcp developer-tools data-science analytics files developer-tools windows cli rust python csv data-wrangling polars excel opendata ckan sql geocoding fair-data luau parquet jsonl data-engineering automation linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="dathere/qsv")