sql-formatter

Format, validate, and analyze SQL queries. Paste SQL or point to a file.

Usage

Format this SQL: [paste SQL]
Validate [SQL file] and report errors
Explain this query: [paste SQL]

What it does

• Format — Pretty-print SQL with proper indentation
• Validate — Check syntax errors with line/column numbers
• Explain — Show query execution plan (PostgreSQL/MySQL)
• Detect type — Identifies SELECT, INSERT, UPDATE, DELETE, CREATE, ALTER

Supported Dialects

• PostgreSQL
• MySQL / MariaDB
• SQLite
• SQL Server (T-SQL)

Notes

• Auto-detects dialect from context
• Preserves query comments
• Handles nested queries and CTEs