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SQL Formatter

Make SQL with joins, subqueries and CASE expressions easier to inspect without executing it.

Your data is processed locally in your browser and is never uploaded.Maximum: 4 MB per file. Input is not saved in browser storage or placed in the URL.
Output

Limitation: This formats tokens only. It does not execute SQL or verify tables, columns, permissions, procedures, dialect semantics or runtime behaviour.

How to use this tool

  1. Load a .sql file or paste SQL and format it, then compare the output with the source.
  2. Review the live result and use Copy result when you need to share it.

How the transformation works

A token-aware formatter preserves quoted strings and comments while adding line breaks. It does not connect to a database. Processing runs entirely in this browser. The page does not upload, persist, execute or remotely inspect the supplied content.

Processing rules

A token-aware formatter preserves quoted strings and comments while adding line breaks. It does not connect to a database. Processing runs entirely in this browser. The page does not upload, persist, execute or remotely inspect the supplied content.

Step-by-step transformation

  1. Load a .sql file or paste SQL and format it, then compare the output with the source.
  2. A token-aware formatter preserves quoted strings and comments while adding line breaks. It does not connect to a database. Processing runs entirely in this browser. The page does not upload, persist, execute or remotely inspect the supplied content.
  3. Check the displayed result, then copy it if needed.

Worked example

A SELECT containing a LEFT JOIN, derived table, CASE and EXISTS subquery becomes an indented review copy.

Risk guidance

Frequently asked questions

Does this tool send my inputs anywhere?

No. The interactive calculation runs in your browser and this site does not submit tool inputs to a backend.

How should I use the result?

Check that the entered units and values match your situation, especially around dates, breaks, and rounding.

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