FAHAQ

SQL Validator

Lightweight sanity check for SQL queries.

This is a lightweight sanity check — it verifies balanced parentheses and quotes and a recognised leading keyword. It is not a full SQL parser and will not catch every syntax error.

SQL input

Free online SQL validator. A lightweight sanity check for balanced parentheses and quotes and a recognised leading keyword. Runs in your browser — note it is not a full SQL parser.

How to use the SQL Validator

  1. 01Paste your SQL query into the box.
  2. 02The check runs instantly, flagging unbalanced parens or quotes.
  3. 03Review any issues — a green status means no structural problems were found.

Frequently asked questions

Is this a full SQL parser?

No — it is a lightweight sanity check. It verifies balanced parentheses and quotes and a known leading keyword, but does not fully parse or execute the query, so it won't catch every syntax error.

Is my query uploaded?

No. The check runs entirely in your browser and nothing is transmitted.