This tool is an online SQL code formatting and compression tool supporting beautification and compression of common SQL syntax including SELECT, INSERT, UPDATE, DELETE, JOIN, and subqueries, compatible with mainstream database dialects such as MySQL, PostgreSQL, SQL Server, and Oracle. All operations are performed locally in your browser, and code is never uploaded to any server.

Main Features

• Format/Beautify:Indent, line-break, and uppercase keywords in single-line or messy SQL statements according to standard style, improving readability.
• Compress:Remove all excess whitespace, line breaks, and comments, shortening SQL statement length.
• Syntax Validation:Check bracket pairing, quote pairing, and correct usage of common keywords.

Formatting Style Description

• Main keyword line breaks:Clauses such as SELECT, FROM, WHERE, GROUP BY, ORDER BY, HAVING, and LIMIT are placed on separate lines.
• JOIN on separate lines:INNER JOIN, LEFT JOIN, RIGHT JOIN, ON, etc. are placed on separate lines.
• AND / OR line breaks:AND / OR conditions in the WHERE clause are line-broken and indented, making multi-condition queries easier to read.
• Keyword case:Choose all uppercase, all lowercase, or keep original.
• Optional comma line breaks:When enabled, line breaks automatically occur after commas in SELECT lists and FROM lists.

Main Use Cases

• Debug complex SQL and quickly beautify multi-table join queries.
• Read SQL logs printed by ORM frameworks (such as MyBatis, Hibernate).
• Unify team SQL code style during code reviews.
• Improve readability when writing database migration scripts.
• Troubleshoot SQL bracket matching errors.

Tool Features

• Single-column editing with line numbers: Input and output in the same text box with line numbers on the left, providing an IDE-like editing experience.
• Smart tokenization: Correctly handles content in strings, comments, and quoted identifiers without mistakenly formatting them.
• Preserve comments: Retains SQL comments (line comments -- and block comments /* */) when formatting.
• Configurable indentation: Supports 2 spaces, 4 spaces, and Tab indentation styles.
• Real-time statistics: Displays code line count, character count, SQL statement count, and estimated size in real time.
• Syntax validation: Detects bracket and quote pairing and prompts common errors.
• Safe and reliable: Pure front-end execution, no data uploaded, absolutely protects your code privacy.