Developer ToolsCode ValidatorsFree Tool
SQL Syntax Checker
Reformat SQL with keyword line breaks, plus one basic structural check: flagging a SELECT with no matching FROM.
How to Use SQL Syntax Checker
- 1Paste your SQL query
- 2Click Process
- 3Review the reformatted output and the SELECT/FROM check result
Frequently Asked Questions
Only one structural rule: if your query contains SELECT but no FROM, it's flagged with a warning. Otherwise it shows '✓ Basic syntax OK' — alongside the same keyword-based reformatting the SQL Prettifier tool does.
No — it doesn't parse or execute your SQL, and doesn't know your actual database schema, so it can't catch invalid table/column names, typos in keywords, or most real syntax errors.
They share the identical keyword-reformatting logic; this tool adds the one SELECT/FROM check on top.
No — the check runs entirely in your browser; it never connects to a database.
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