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ToolNest AI
Free

SQL Formatter

Format, beautify and minify SQL queries with dialect-aware syntax highlighting for MySQL, PostgreSQL, SQLite, SQL Server and Oracle.

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tablePaste or type SQL here, or upload a .sql file

About SQL Formatter

Paste any SQL query and instantly beautify it into clean, readable, properly-indented code. Supports five major dialects — MySQL, PostgreSQL, SQLite, SQL Server (T-SQL) and Oracle (PL/SQL) — with auto-detect to identify the most likely dialect from your query. Toggle keywords between UPPERCASE and lowercase, choose 2-space, 4-space, or tab indentation, and switch between inline and expanded clause positioning. Minify compresses your query to a single line for embedding or logging. All processing is 100% client-side — your SQL never leaves the browser.

Frequently Asked Questions

MySQL, PostgreSQL, SQLite, SQL Server (Transact-SQL / T-SQL), and Oracle (PL/SQL). Each dialect has slightly different keywords and syntax rules — choosing the correct one produces the most accurate formatting.

Auto Detect scans your query for dialect-specific keywords (such as TOP for SQL Server, ILIKE for PostgreSQL, AUTO_INCREMENT for MySQL, ROWNUM for Oracle) and selects the most likely dialect automatically.

Yes. The formatter handles multi-statement SQL, subqueries, CTEs (WITH clauses), JOINs, and most stored procedure syntax. Very complex PL/SQL or T-SQL blocks with procedural code may have limited formatting.

Beautify adds indentation, line breaks, and consistent spacing to make the SQL readable. Minify removes all unnecessary whitespace to produce a compact, single-line query suitable for embedding in code or logs.

No. All formatting uses the sql-formatter library running entirely in your browser. Your SQL queries are never transmitted to any server.

Yes. Click Upload SQL to open a .sql or .txt file from your device and load its contents directly into the editor.

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