SQL Formatter
100% client-side. Your data never leaves this page. Verify: DevTools → Network.
SQL in
Formatted
Pretty-print messy SQL into a consistent, readable shape: clauses on their own lines, aligned lists, and your choice of keyword case and indent width. Pick the dialect (PostgreSQL, MySQL, DuckDB, BigQuery, Snowflake, T-SQL and more) so dialect-specific syntax is parsed correctly.
Formatting is powered by the sql-formatter library and runs entirely in your browser — your queries, table names and column names are never uploaded.