JSON Studio

SQL Helper

Format and sanity-check SQL for six dialects, then build queries visually or from a plain-English description. Everything runs in your browser — no database connection and no query execution.

Queries are never executed or uploaded.

Formatted SQL will appear here.

Shortcuts: Ctrl/Cmd + Enter run · Ctrl/Cmd + Shift + F format

How to use

  1. 1Choose your database dialect from the dropdown.
  2. 2Paste a query and click Check SQL for structural issues, or Format SQL to prettify it.
  3. 3Switch to Query Helper to build a SELECT from form fields or a plain-English description.
  4. 4Copy the generated SQL into your editor or client.

Frequently asked questions