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SQL Formatter

Beautify, minify, and highlight SQL with multi-dialect support.

Tool Guide

What is SQL Formatter?

Beautify, minify, and highlight SQL with multi-dialect support.

How to use?

  1. Input Messy SQL: Paste long, unformatted SQL generated by ORMs or concatenated code.
  2. Select Dialect & Config: Choose MySQL/PostgreSQL etc., and toggle keyword uppercase rules.
  3. Format: Instantly generates structured, indented, and highlighted code for massive readability gains.

Use Cases

Slow Query Log Analysis

Beautify messy long SQLs pulled from DBA logs to easily spot which JOIN or WHERE is causing performance bottlenecks.

Limits and data handling

  • Formatting changes layout only. It does not run SQL or check query results and data safety.
  • Functions and special syntax can differ between database dialects and may need manual adjustment.
  • Remove account, customer, and business-sensitive values before pasting SQL.

SQL is formatted and viewed in the current browser. The tool does not connect to or change your database.

Frequently asked questions

Will the formatter run my SQL?

No. It changes spacing, indentation, and line breaks without connecting to a database or changing data.

Why does formatting differ between databases?

Choose the dialect closest to the statement. Special functions and extensions may still need manual review.

Can I paste production SQL?

Remove account, customer, and other sensitive values first, keeping only the structure needed for review.