#221 · Formatters & Data Text Tool

SQL Formatter

Format messy SQL into clean, readable queries with smart indentation, keyword case control, JOIN and WHERE line breaks, query statistics, quality scoring, and optimization notes.

Text Input

SQL formatting options
spaces

Recent History

No history yet.
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How to use this text tool

  • Paste a SQL query into the input box.
  • Choose keyword case and indentation size.
  • Enable line breaks before AND or OR when reviewing long filters.
  • Click Format SQL, then copy or download the .sql result.

What this tool does

This SQL formatter restructures queries so clauses, joins, conditions, nested blocks, and ordering are easier to review before running or sharing database code.

Processing logic: detect SQL clauses, normalize whitespace outside strings, add line breaks around major keywords, indent nested parentheses, and report query structure.

Formatting does not execute SQL. Review generated output before using it in production databases.

Example

Try the sample input, run format sql, and compare the before-and-after structure in the result panel.

Use cases

  • Clean code before review or sharing.
  • Prepare structured text for documentation, snippets, or production workflows.
  • Check size, line count, structure, and quality before exporting.

Tips for better output

  • Avoid SELECT * when sharing production SQL.
  • Keep aliases consistent across JOIN clauses.
  • Split very long WHERE conditions into separate lines.

Processing details

Processing logic: detect SQL clauses, normalize whitespace outside strings, add line breaks around major keywords, indent nested parentheses, and report query structure.

Formatting does not execute SQL. Review generated output before using it in production databases.

FAQ

How do I format SQL queries automatically?

Paste the query, choose indentation and keyword case, then run the formatter to add line breaks around SELECT, FROM, JOIN, WHERE, GROUP BY, and ORDER BY sections.

How can I make a long SQL query easier to read?

Use one major clause per line, break conditions before AND or OR, indent nested subqueries, and keep aliases consistent.

Should SQL keywords be uppercase in formatted queries?

Uppercase keywords are common because they separate SQL syntax from table names and column names, but the best choice is the convention used by your team.

How do I format nested SQL queries online?

The formatter indents parentheses and nested SELECT statements so subqueries are visually separated from the outer query.

Why does my SQL formatter show a complexity warning?

Warnings appear when the query contains patterns such as many JOINs, nested SELECTs, SELECT *, multiple OR conditions, or very long lines.

Tool modules

ModulePurpose
Input parserReads pasted text, uploaded files, or sample data.
Processing engineApplies formatting, minification, generation, or cleanup logic.
Quality reportShows statistics, quality score, and practical recommendations.
Export toolsSupports copy, TXT, CSV, JSON, print, history, undo, and redo.

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