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SQL Validator

Check SQL for balanced parentheses, closed quotes, and basic syntax consistency.

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This tool is a lightweight validator that checks matching parentheses, quotes, and basic keyword consistency. It does not perform complete SQL parsing or DBMS-specific dialect validation.

What is SQL Validator?

SQL Validator is a lightweight tool that checks SQL queries for balanced parentheses, closed quotes, and consistent comma usage. It is not a full SQL parser, but it helps quickly catch simple syntax mistakes from copy-paste errors or typos.

How to Use

  1. Paste an SQL query into the input field.
  2. Enable auto-validate to see results in real time as you type.
  3. If issues are found, a list of line numbers and error messages is shown.
  4. If no issues are found, structural stats such as detected keywords and statement count are displayed.

FAQ

What kind of checks are performed?

The tool checks for balanced parentheses, unclosed quotes (single, double, backtick), consecutive commas, trailing commas, and missing semicolon separators between statements.

Does it perform full SQL parsing?

No. This is a lightweight heuristic checker and does not implement full parsing or dialect-specific validation for a particular DBMS (MySQL, PostgreSQL, etc.). Test against an actual database before running in production.

Can it check multiple SQL statements at once?

Yes. Multiple statements separated by semicolons are checked together.

Is my data sent to a server?

No. All processing happens in your browser.

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