Query CSV with SQL Online

This tool loads your CSV into a real SQLite table and lets you query it with SQL. Filter with WHERE, summarise with GROUP BY, sort, and shape the output exactly as you need.

It is the quickest way to answer a question about a spreadsheet without importing it into a database, and the result can be copied or downloaded as CSV.

The header row becomes the column names and each row becomes a record in a table (named data by default, which you can change). Values that look numeric are stored as numbers so comparisons and sums work.

SQLite runs the query in your browser through WebAssembly, so joins, aggregates and subqueries all work and nothing is uploaded.

Every conversion happens locally in your browser, so your data is never uploaded, logged or stored on a server. You can use it on confidential exports without a second thought, and it keeps working offline once the page has loaded.

There is no sign-up, no watermark and no row limit: the only ceiling is your device's memory.