SQL Formatter

This is a free online developer tool that allows you to format and beautify long, unreadable single-line SQL queries logged by your applications into neatly indented queries instantly.

As you type or paste your SQL, the tool automatically capitalizes reserved keywords (like SELECT, FROM, WHERE) and applies colorful "Syntax Highlighting" to help you intuitively grasp the structure of complex queries.

1. Select Dialect: Choose the database type you are using (MySQL, PostgreSQL, T-SQL, etc.) from the dropdown menu.
2. Indentation Settings: Select your preferred indentation (2 spaces, 4 spaces, or tabs) and decide if you want to uppercase keywords.
3. Input SQL: Paste your raw or minified SQL query into the "Input" area on the left.
4. View Result: Within a fraction of a second, your perfectly formatted query will appear on the right side.
5. Copy: Click the "Copy" button at the top right to save the formatted query to your clipboard.

SQL (Structured Query Language)

A standardized query language used to manage and interact with relational databases. Commands like SELECT retrieve data, INSERT adds records, and UPDATE modifies existing data.

Indentation

The use of whitespace at the start of a line to visually represent the hierarchical structure of code. In SQL formatting, indentation makes subqueries and JOIN clauses readable at a glance.

Reserved Words (Keywords)

Special words in SQL with predefined meanings, such as SELECT, FROM, and WHERE. Uppercasing them during formatting significantly improves code readability by visually separating commands from data.

Subquery

A nested SQL query embedded inside another SELECT statement. A formatter indents subqueries properly to make the nested structure visually clear and easy to debug.

JOIN Clause

SQL syntax for combining rows from two or more related tables. Types include INNER JOIN, LEFT JOIN, and RIGHT JOIN. A formatter places each JOIN clause on its own line with proper indentation.

Code Formatter

A tool that automatically adjusts whitespace, line breaks, and indentation in source code according to a set of rules, enhancing both readability and maintainability.

Syntax Highlighting

A feature that displays keywords, functions, and string literals in different colors. It makes the structure of SQL queries much easier to understand at a glance.

• ORM Debugging: Make sense of massive, single-line SQL log files generated automatically by ORMs like Prisma, ActiveRecord, or Hibernate.
• Code Review: Unify poor or varied indentations written by different teammates before committing the code.
• Documentation: Prepare perfectly aligned and highlighted code blocks to be pasted into technical Wikis or spec sheets.
• Learning & Analysis: Paste complex queries from tutorials to break them down into readable chunks and understand their logic.

Q.Is my SQL query sent to a server?

No. All SQL formatting is handled entirely within your browser's JavaScript engine. Your query is never transmitted to any external server, making it completely safe to format production or sensitive SQL.

Q.Which SQL dialects are supported?

MySQL, PostgreSQL, SQLite, SQL Server, and other major RDBMS dialects are supported. Standard SQL syntax will format correctly across most dialect options.

Q.Are reserved words automatically uppercased?

Yes. SQL reserved words like SELECT, FROM, WHERE, and JOIN are automatically converted to uppercase. This behavior can be toggled in the settings above the input area.

Q.Can it handle very long SQL queries?

Yes. Even hundreds-of-lines-long SQL queries are formatted quickly. Complex syntax including stored procedures is also handled correctly.

Q.Can I customize the formatting style (indentation width, etc.)?

Yes. You can customize indentation (2 spaces, 4 spaces, or tabs) and keyword casing (upper or preserved) from the settings panel above the editor.

Q.How do I copy the formatted result?

Click the "Copy" button at the top right of the output panel. The formatted SQL is instantly copied to your clipboard, ready to paste into your editor or query tool.

Q.Does it validate or execute SQL?

No. This tool is purely a formatter — it beautifies the visual presentation of SQL. Syntax validation and query execution are not included; use your database management tool for those tasks.