Format, beautify, and minify SQL queries with syntax highlighting and dialect support
Paste SQL in the input pane and click Format
Consistent formatting makes SQL queries easier to read during code review, debugging, and maintenance. When clauses like SELECT, FROM, WHERE, and JOIN each start on a new line, the logical structure of a query is immediately visible — especially for complex multi-join queries or nested subqueries.
MySQL uses backtick quoting for identifiers and has AUTO_INCREMENT. PostgreSQL uses double quotes and supports richer type casting with ::. SQL Server uses [square brackets] and TOP instead of LIMIT. Oracle uses ROWNUM/FETCH FIRST for pagination. SQLite is largely compatible with standard SQL but has fewer data types.
SELECT * — Always specify columns; * fetches unnecessary data and breaks when schemas change.JOIN … ON … instead of comma-joined tables in FROM.WHERE YEAR(created_at) = 2025 prevents index use; prefer WHERE created_at >= '2025-01-01'.NOT IN with NULLs — NOT IN returns no rows if the subquery contains any NULL; use NOT EXISTS instead.Save history & custom presets — coming soon for logged-in users