SQL Formatter
Format SQL queries into clean, readable multi-line syntax. Supports MySQL, Postgres, T-SQL, BigQuery and more.
What is the SQL Formatter?
The SQL Formatter reformats a jumbled one-line query into readable, indented, multi-line SQL with consistent keyword casing. It supports MySQL, PostgreSQL, SQL Server, SQLite, BigQuery, Oracle and MariaDB.
Dialect selection matters because quoting, functions and procedural constructs vary between database engines. The formatter applies layout rules appropriate to the chosen dialect while preserving comments and organizing clauses, joins, subqueries and common table expressions.
Formatting only rearranges whitespace and casing — the query executes identically. Everything runs in your browser.
How to use the SQL Formatter
- 1Paste your SQL query into the input area.
- 2Pick the database dialect.
- 3Choose indentation width and keyword casing.
- 4Click "Format" and copy the tidied query back to your editor.
When to use the SQL Formatter
- Expand a query copied from application logs into a readable form for debugging.
- Normalize SQL formatting before attaching a query to a code review or incident report.
- Make joins, filters and nested subqueries easier to inspect for logic mistakes.
- Minify a formatted query when a compact single string is needed in configuration.
Key features
- Dialect-aware formatting for all major databases
- Configurable indentation and keyword casing
- Aligns SELECT columns, JOIN conditions and WHERE clauses
- Handles subqueries and CTEs, preserves comments
- Minify option to collapse whitespace
Important notes
- Formatting does not execute, optimize or fully validate SQL. Review the statement and test it against the intended database before use.
- Queries are processed in the browser, so pasted schema names and values are not uploaded by this formatter.
Frequently asked questions
Does the formatter change my results?
No — only whitespace and casing change. The query still executes identically.
Can it format stored procedures?
Yes — DECLARE, IF/ELSE and LOOP constructs are handled for popular dialects.
Why should I choose the correct dialect?
Database engines differ in quoting, keywords and procedural syntax. Selecting the target engine helps the parser avoid treating valid dialect-specific syntax incorrectly.
Does formatting protect against SQL injection?
No. Formatting changes presentation only. Use parameterized queries and proper database permissions to prevent injection.
All Developer Tools
Tap any tool to jump straight in — no signup, works on mobile.