Free SQL syntax checker
Check and validate your SQL query for potential issues.
Optimize and format SQL from your favorite IDE
SQL Syntax Checker FAQ
The SQL Validator is a free tool that automatically checks your SQL code and identifies syntax errors to help you write cleaner, more efficient queries. It provides instant feedback and highlights potential issues in your code. The Validator supports MySQL and PostgreSQL.
- Input your SQL code: Paste or type your SQL code in the editor.
- Validate your Code: Click Validate SQL syntax to validate your SQL code.
- Review the output: The results are displayed. Either your code is valid or the editor highlights syntax errors.
The Validator can detect a wide range of common SQL syntax errors, including:
- Missing or extra commas
- Incorrect use of parentheses
- Improper use of operators
- Improper use of quotes
- Invalid expressions
Yes, your code is processed securely. We do not store your SQL queries or any details about syntax errors.
We are committed to protecting your privacy. We collect minimal data to help us improve our tool and monitor its performance. This includes:
- The database type and version you select
- The length of your query
- Whether the validation was successful
In rare cases, we may also track internal error messages for troubleshooting purposes. These internal errors are not related to the syntax errors you see in the tool and do not contain your original SQL code. We do not share this data with third parties.