Developer database tools
Free tools that run entirely in your browser. Your data never leaves your device.
SQL Formatter
Beautify SQL for PostgreSQL, MySQL, and SQLite with dialect-aware formatting options.
CSV to SQL Converter
Turn CSV files or pasted text into safe INSERT statements with type inference and conflict handling.
JSON to SQL Converter
Convert JSON objects into INSERT statements with type inference, batching, and CREATE TABLE output.
SQL Query Explainer
Get a structured plain-language explanation of joins, filters, grouping, and risks in your SQL.