SQL Formatter (Beautify, Indent, Pretty Print)
Beautify complex SQL queries instantly. Add proper indentation and fix keyword casing for better readability.
Format and beautify SQL queries. Supports MySQL, PostgreSQL, Oracle.
Format SQL queries in your browser with support for Postgres, MySQL, and Standard SQL. Query text is not uploaded to JW Tool Box; the site separately collects usage information as described in the Privacy Policy.
How this page is maintained
- Steps and copy are checked against the current tool behavior.
- Browser limits, file-size constraints, or compatibility gaps are documented when relevant.
- Unless a page explicitly says otherwise, files and text stay in the browser during processing.
Formatting Long SQL Queries
Pulling an 800-character SQL query out of a slow-query log and finding it minified onto a single line is a common chore. Without indentation or casing, debugging a missing parenthesis or a rogue LEFT JOIN is functionally impossible. Our SQL Formatter acts as a structural de-obfuscator.
Dialect-Aware Formatting
Generic spacing rules can break SQL syntax. The intelligence of our engine lies in its dialect awareness. Before formatting, simply select your target database architecture (PostgreSQL, MySQL, or Standard SQL). The parser intelligently respects dialect-specific operators, capitalizing core commands (e.g., SELECT, WHERE, GROUP BY) while aggressively breaking complex nested subqueries into a readable, cascading visual hierarchy.
Local Processing
The formatter processes SQL in your browser, and query text is not uploaded to JW Tool Box. Site usage information is collected separately as described in the Privacy Policy. Avoid using sensitive production data unless permitted by your organization's rules.
Key features
- Multi-Dialect Support: Select your specific database flavor (MySQL, PostgreSQL, Standard SQL) to ensure the formatter respects dialect-specific syntax and functions.
- Intelligent Beautification: Automatically breaks long logical expressions and nested subqueries into a structured hierarchy that makes logic errors easy to spot.
- Keyword Standardization: Enforces UPPERCASE for SQL keywords (like INSERT, UPDATE) while keeping your table and column names intact, adhering to best practices.
Frequently asked questions
Does it validate my query?
It focuses on formatting (pretty-printing). While it can parse valid SQL structure, it does not connect to a database to verify table existence or logic.
Is it safe for production queries?
Yes, your queries are processed locally in the browser. No database credentials or query text are ever sent to an external server.
Can it handle minified SQL?
Yes, paste a single massive line of SQL, and it will be expanded into a readable, indented block instantly.
Related guides
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Free SQL Formatter Online: Beautify MySQL, PostgreSQL & Oracle Queries (2026)
If you've ever copied SQL code from a production database or received an unformatted query from a colleague, you know the pain: a single line of text stretching hundreds of characters, impossible to debug or understand. Stop squinting at messy SQL. Use our SQL Formatter to beautify queries in seconds—completely free, no signup required. Why SQL Formatting Matters Clean, well-formatted SQL isn'…