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Best text-to-SQL tools for CSV files (2026)

The best fit depends on whether you need inspectable SQL, a spreadsheet workflow, or broader code-backed analysis. This is a selection guide, not a tested ranking.

Test the answer before choosing

Use a non-sensitive CSV with a known total. Ask the same question in each product, define the date range and metric, and inspect the calculation. Check missing values, duplicate rows and whether a ranking uses revenue or units. A fluent explanation does not establish correctness.

QueryAI uploads the CSV to its server and generates DuckDB SQL for a result table. Review the privacy terms before uploading data. Compare supported inputs, reviewable logic and the output you need; this is not an accuracy benchmark.

Try it for real with your CSV

Product details checked 2026-10-26. QueryAI: current workflow and pricing. Vendor capabilities and offers can change.