Free Online SQL Syntax Checker & Validator
Check your SQL queries for syntax errors instantly. Supports PostgreSQL, MySQL, SQLite, and more SQL dialects. Validate your SQL code before running it in production.
SQL Syntax Checker Tool
Instant Validation
Check your SQL syntax instantly and catch errors before execution.
Multiple Dialects
Supports PostgreSQL, MySQL, SQLite, T-SQL, Oracle, and standard SQL.
Private & Secure
All validation happens in your browser. Your SQL queries never leave your device.
How to Use the SQL Syntax Checker
Quick Start
- Paste your SQL query in the input area
- Select your SQL dialect (PostgreSQL, MySQL, etc.)
- Click "Check SQL" to validate your query
- Review the validation results
What We Check
- SQL syntax correctness
- Proper keyword usage
- Balanced parentheses and quotes
- Basic query structure validation
About This SQL Syntax Checker
This free SQL syntax checker tool helps developers validate SQL queries before execution. Whether you're working with PostgreSQL, MySQL, SQLite, or other SQL databases, our validator helps catch common syntax errors early in development. Perfect for learning SQL, debugging queries, and ensuring code quality.