Format messy, unindented, or minified SQL queries into clean, standardized SQL code with uppercase keyword formatting and intelligent clause indentation.
All formatting, parsing, decoding, and validation executes entirely within your browser using modern Web APIs and JavaScript. Your tokens, JSON payloads, regex inputs, and queries never leave your computer.
Complex database queries involving multiple JOIN clauses, subqueries, CASE statements, and CTEs (Common Table Expressions) can quickly become unreadable when crammed onto one line in application logs or ORM output.
DevRef's Online SQL Formatter cleans and beautifies SQL queries with proper line breaks, consistent indentation, and uppercase keyword casing. It supports major database dialects including PostgreSQL, MySQL, MariaDB, SQLite, BigQuery, and Oracle. All formatting executes 100% in your browser—your database schemas and queries are never uploaded or stored.
No. The SQL parser and formatting engine run entirely within client-side JavaScript in your browser. No queries, table names, or data are transmitted over the internet.
No. This tool is strictly a static syntax formatter and beautifier. It does not connect to any database or execute statements.
Yes. The formatter intelligently indents CTE blocks (WITH clause) and nested parenthesized subqueries for maximum readability.
Quick reference for JOIN types, aggregations, window functions, indexing, and transactions.
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