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  3. SQL Formatter
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What is SQL Formatter?

Paste a SQL query — however tangled — and get a neatly formatted version with proper indentation, keyword capitalization, and line breaks. Supports SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, and complex joins across common SQL dialects.

How to Use

  1. 1Paste your SQL query into the editor
  2. 2Select the SQL dialect if needed (Standard, PostgreSQL, MySQL, etc.)
  3. 3View the formatted output with proper indentation
  4. 4Copy the result

Key Features

  • Automatic keyword uppercasing (SELECT, FROM, WHERE, etc.)
  • Intelligent indentation for subqueries and joins
  • Support for multiple SQL dialects
  • Handles complex queries with CTEs, window functions, and nested subqueries
  • Minify option to compress queries into a single line

Tips & Best Practices

  • If a subquery is not indenting correctly, check for missing parentheses — the formatter relies on balanced brackets to determine nesting depth.
  • Use the minify option when embedding SQL in application code where readability is less important than compactness.

Common Use Cases

  • Cleaning up generated SQL

    Format machine-generated or ORM-produced queries into readable SQL for debugging and review.

  • Code review preparation

    Standardize SQL formatting before committing to version control so diffs are meaningful and reviews are easier.

  • Documentation and knowledge sharing

    Format complex queries cleanly for inclusion in runbooks, wiki pages, or onboarding documents.

  • Learning SQL structure

    See how a complex query is structured by formatting it with clear indentation — useful for understanding unfamiliar queries.

Frequently Asked Questions

Which SQL dialects are supported?

The formatter handles standard SQL and common dialects including PostgreSQL, MySQL, SQLite, and Microsoft SQL Server syntax.

Does formatting change query behavior?

No. Formatting only affects whitespace and capitalization. The query logic and results remain identical.

Can it handle stored procedures?

Basic procedural SQL (BEGIN/END blocks, IF statements) is supported, though very complex dialect-specific syntax may not format perfectly.

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All processing happens directly in your browser. Your files never leave your device and are never uploaded to any server.