SQL Formatter & Beautifier Online

Clean up unformatted, single-line, or messy SQL queries into readable, professionally formatted database statements. Standardize keywords to uppercase or lowercase, align major clauses like SELECT, FROM, WHERE, and JOIN on separate lines, and format without uploading data.

Format complex SQL queries with clean alignment

Paste your SQL query into the input field, choose uppercase or lowercase keyword casing, and select your preferred indentation width. The formatter restructures the statement, putting major clauses on distinct lines with consistent hierarchical indentation.

Keyword standardization across dialects

The formatter recognizes standard ANSI SQL commands as well as dialect-specific keywords from MySQL, PostgreSQL, SQLite, BigQuery, and SQL Server. Key terms such as SELECT, FROM, WHERE, JOIN, GROUP BY, and ORDER BY are adjusted to your selected case preference.

Protecting string literals and comments

String values enclosed in single or double quotes and numeric literals are tokenized and protected prior to formatting. This guarantees that table data, text filters, and embedded comments remain unmodified.

Database query security and offline execution

Formatting database queries in an online tool can pose security risks if queries contain confidential table schemas or customer data. KKSuite executes all formatting entirely client-side, ensuring no query text is transmitted over the internet.

Technical references: ANSI SQL Standards Overview · SQL Database Glossary

SQL Formatter & Beautifier FAQs

The formatter is designed for standard ANSI SQL and supports queries written for PostgreSQL, MySQL, SQLite, Oracle, BigQuery, and Microsoft SQL Server.
No. The formatting engine modifies only SQL keywords and structural indentation. Column names, table names, aliases, and string contents remain unchanged.
Yes. Single-line comments starting with double hyphens and multi-line comments enclosed in slash-asterisks are preserved.
No. The entire lexical tokenization and formatting process executes strictly inside your browser. No queries are transmitted to any backend.
Yes. Nested clauses enclosed in parentheses are indented to reflect query depth and execution hierarchy.
JOIN types such as INNER JOIN and LEFT JOIN begin on new lines, and their corresponding ON conditions are aligned directly beneath them.
Yes. Multiple sequential queries separated by semicolons are formatted in sequence with clean spacing between statements.
Uppercase keywords visually separate database syntax from project-specific schema names, improving code review speed and maintainability.
You can format queries and stored procedure scripts up to 100,000 characters in length.