Format SQL statements with proper indentation, support for multiple database dialects and case conversion
Zero Dependencies · Works Offline📝 SQL Input
📜 History
What Can the SQL Formatter Do?
The SQL Formatter & Beautifier is a free online developer tool that transforms messy SQL statements into well-indented, readable code with a single click. It supports intelligent formatting for complex syntax structures including SELECT, INSERT, UPDATE, DELETE, JOINs, subqueries, UNIONs, and CTEs (WITH). Also provides SQL minification to compress multi-line SQL into a single line. Ideal for database development, SQL debugging, and code review. All formatting happens locally in your browser—no SQL is ever uploaded to a server.
Core Features
- Smart Formatting: Auto-detects SQL keywords and adds line breaks and indentation for SELECT/FROM/WHERE/JOIN/GROUP BY/ORDER BY clauses
- Case Conversion: One-click keyword case conversion to uppercase, lowercase, or keep original
- SQL Minification: Compress multi-line SQL into a single line, removing extra whitespace
- Comma Style: Support trailing comma (standard) and leading comma (easier commenting) styles
- History: Automatically saves your last 5 formatting operations
How to Use
1. Paste your SQL statement into the input area, or click "Load Example" for a quick demo.
2. Configure options: indent size, keyword case, comma style.
3. Click "Format" or press Ctrl+Enter.
4. View the formatted SQL below.
5. Click "Copy" or download as .sql file.
Use Cases
Case 1: Database Debugging
Format compressed single-line SQL from logs into multi-line for easier reading and debugging of complex queries.
Case 2: Code Review
Standardize team SQL code style for better Code Review readability and consistency.
Case 3: SQL Education
Display complex SQL in formatted form to help students understand query structure and execution order.
Technical Background
SQL (Structured Query Language) is the standard query language for relational databases, standardized by ANSI/ISO. SQL execution order differs from writing order: FROM→WHERE→GROUP BY→HAVING→SELECT→ORDER BY. Good SQL formatting follows: each clause on its own line, indented JOIN conditions, indented subqueries, and aligned column names. Common SQL formatters include sqlfmt, Poor Man's T-SQL Formatter, and SQL Formatter.
❓ FAQ
Which SQL dialects are supported?
MySQL, PostgreSQL, SQLite, SQL Server, Oracle and other mainstream SQL dialects.
Does formatting change SQL behavior?
No. Formatting only changes indentation and line breaks without modifying SQL logic.
Does it support complex SQL?
Yes. Subqueries, JOINs, UNIONs, CTEs (WITH), CASE WHEN and more.
Is my data uploaded?
No. All formatting happens locally in your browser. Your SQL never leaves your device.
Can I minify SQL?
Yes. Use minify mode to compress SQL into a single line.
Does it support case conversion?
Yes. Convert keywords to uppercase, lowercase, or keep original.
Feedback: dexshuang@google.com