SQL Formatter

Raw or minified SQL is hard to read and review. The SQL Formatter formats and beautifies SQL with consistent indentation and line breaks, supports multiple dialects, and optionally runs basic syntax checks—so you can make raw queries readable, share formatted SQL in docs or tickets, or spot obvious syntax issues.

What does the SQL Formatter do?

It formats and beautifies SQL with consistent indentation and line breaks. It supports multiple dialects (e.g. Standard SQL, MySQL, PostgreSQL, SQL Server, Oracle, SQLite) and optional basic syntax validation. You paste or type SQL; the tool outputs formatted SQL. Formatting can be done client-side; your queries are not stored—check the tool if it uses a remote formatter. Use it to make raw queries readable, share formatted SQL in docs or tickets, or spot obvious syntax issues. The formatter may normalize whitespace and casing; it should not change logic—if it did, report the dialect and example. Comments or unusual syntax can sometimes be misparsed.

Key Features

• Formatting — Consistent indentation and line breaks. Supports multiple dialects. Optional basic syntax checks.
• Dialects — Standard SQL, MySQL, PostgreSQL, SQL Server, Oracle, and SQLite.
• Validation — Basic syntax validation is performed. Complex validation may require database testing.
• Privacy — Formatting can be done client-side. Your queries are not stored; check the tool if it uses a remote formatter.
• No account — Use as often as you need without sign-up.
• Logic — Formatter may normalize whitespace and casing. It should not change logic; if it did, report the dialect and example.

How to Use the SQL Formatter

1. Open the SQL Formatter tool.
2. Paste or type your SQL. Select dialect if needed. Format. Copy the result.
3. Use the "Use tool" button on the docs page if you are reading this from the documentation.

Real Use Cases

• Readable queries — Paste minified or one-line SQL. Get indented, multi-line output. Use with JSON Formatter or XML Formatter when formatting API responses that contain SQL.
• Docs or tickets — Share formatted SQL in documentation or bug reports. Easier to review. Use with Diff Checker to compare two versions.
• Syntax check — Use basic validation to catch obvious errors. Run full validation in your database. Use with Diff Checker to see what changed after reformatting.
• Multiple dialects — Format MySQL, PostgreSQL, or SQL Server with dialect-specific rules. One tool, many dialects.
• Learning — See how keywords and clauses are aligned. Use as reference for style.
• Code review — Standardize SQL style before commit. Paste, format, copy back.

Why Use the SQL Formatter Instead of Alternatives?

• vs. JSON Formatter — JSON Formatter formats JSON. This tool formats SQL. Use the right tool for the data type.
• vs. XML Formatter — XML Formatter formats XML. This tool is for SQL. Use both when your stack uses both.
• vs. Diff Checker — Diff Checker compares two texts. This tool formats one SQL. Use diff after formatting to compare versions.
• vs. Manual — No need to indent by hand. Paste, format, copy.

Benefits for Developers and DBAs

• Developers — Readable SQL in docs and code. Consistent style across team.
• DBAs — Format ad-hoc or logged queries. Spot syntax issues faster.

Common Mistakes

• Formatting changed my query — Formatter may normalize whitespace and casing. It should not change logic; if it did, report the dialect and example. Comments or unusual syntax can sometimes be misparsed.
• Expecting full validation — Basic syntax only. Run queries in your database for full validation.
• Wrong dialect — Select the correct dialect (e.g. PostgreSQL vs MySQL) for accurate formatting.
• Forgetting to copy — Copy the formatted SQL before closing the tab.

Frequently Asked Questions

What does the SQL formatter do?

It formats and beautifies SQL with consistent indentation and line breaks. Supports multiple dialects. Optional basic syntax checks.

What SQL dialects are supported?

Standard SQL, MySQL, PostgreSQL, SQL Server, Oracle, and SQLite.

Does it validate SQL?

Basic syntax validation is performed, but complex validation may require database testing.

Is my SQL sent to a server?

Formatting can be done client-side. Your queries are not stored; check the tool if it uses a remote formatter.

When should I use the SQL formatter?

Use it to make raw queries readable, share formatted SQL in docs or tickets, or spot obvious syntax issues.

Why did formatting change my query?

Formatter may normalize whitespace and casing. It should not change logic; if it did, report the dialect and example. Comments or unusual syntax can sometimes be misparsed.

Conclusion and Try the Tool

SQL Formatter gives you readable SQL in one place: paste, select dialect, format, copy. No account. For JSON use JSON Formatter, for XML use XML Formatter, and for comparing versions use Diff Checker.

Use the SQL Formatter tool to format SQL queries.