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Data helper

SQL Formatter

Format and beautify your SQL queries instantly.
Select your specific SQL dialect (MySQL, PostgreSQL, etc.) to ensure correct syntax highlighting and indentation.
Perfect for cleaning up complex queries, debugging generated SQL, or preparing code for review.

Guide: How to use & features

  • Select your database engine from the "Dialect" dropdown (defaults to MySQL).
  • Paste your SQL query into the input field to see the formatted output instantly.
  • Click the "Copy" button to grab the beautified query for your code or logs.

Samples: Sample input & output

Formatting a SELECT statement

Input

select a,b,c from table1 join table2 on table1.id = table2.id where a > 10 order by b desc

Output

SELECT
  a,
  b,
  c
FROM
  table1
  JOIN table2 ON table1.id = table2.id
WHERE
  a > 10
ORDER BY
  b DESC

FAQ: Frequently asked questions

  • Which SQL dialects are supported?

    It supports many major dialects including MySQL, PostgreSQL, SQL Server, MariaDB, SQLite, and Oracle.

  • Can I change the indentation width?

    It is currently fixed to a 2-space indentation. Configurable indentation is planned for a future update.

  • Is it safe to enter sensitive queries?

    Yes. All formatting is done locally in your browser; no data is ever sent to our servers.

Use cases: Common use cases

  • Analyzing complex queries

    Beautify nested subqueries and joins to understand the data flow and structure.

  • Preparing for code reviews

    Auto-format SQL to ensure consistency and readability before posting to pull requests.

  • Visualizing application logs

    Format long, single-line queries extracted from logs to spot syntax errors or logical flaws easily.

Notes: Notes & limitations

  • Syntax Errors

    If the input SQL has syntax errors, the formatter may fail or produce unexpected results.

  • Vendor-specific Syntax

    Extremely specialized or experimental vendor-specific features might not be fully supported.

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