csv-analyzer
CSV Analyzer
Analyze large CSV files (1M+ rows) efficiently using DuckDB (SQL) and Polars (DataFrame API).
Tool Selection
| Task | Use DuckDB | Use Polars |
|---|---|---|
| SQL queries on CSV | Yes | No |
| Aggregations, GROUP BY | Yes | Yes |
| Joins between files | Yes (better) | Yes |
| Chained transformations | No | Yes (better) |
| Larger-than-memory | Yes | Yes (lazy mode) |
| Quick stats/preview | Yes | Yes |
Default to DuckDB for most analytical queries. Use Polars for complex DataFrame transformations.
Quick Start
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