Query CSV data with SQL statements - Pure frontend AlaSQL engine, local execution, no data upload
Based on the AlaSQL engine, it supports SELECT, WHERE, ORDER BY, GROUP BY, HAVING, JOIN, UNION, DISTINCT, LIMIT, OFFSET, aggregate functions (COUNT/SUM/AVG/MIN/MAX), string functions, date functions, and more standard SQL syntax. The table name is always csvdata.
No! All data processing happens locally in your browser using the AlaSQL JavaScript engine. Data is never uploaded to any server, ensuring privacy and security.
We recommend CSV files under 10MB (approximately 100,000 rows). Larger files may cause browser memory issues or slow queries. For large datasets, filter first or use LIMIT to restrict result rows.
Yes. CSV SQL Query Tool is fully responsive and works on phones, tablets, and desktops. The interface adapts automatically to your screen size.
No. CSV SQL Query Tool uses client-side processing β everything runs in your browser. Your data never leaves your device, and the tool works even without an internet connection.
Absolutely. All processing happens locally in your browser. No data is sent to any server, so there's zero risk of data leaks. Your information stays completely under your control.
No. CSV SQL Query Tool is a web-based tool β just open it in your browser and start using it. No downloads, plugins, or extensions required.