SQL Formatter & Beautifier
Format, minify and uppercase SQL queries with syntax highlighting and dialect support.
Formatted output will appear here.
Format & Beautify
Pretty-print SQL with proper indentation. Major clauses get their own lines, sub-clauses are indented, and parentheses are handled cleanly.
Minify
Compress SQL into a single line by removing comments and extra whitespace. Ideal for embedding queries in code or reducing payload size.
Dialect Highlighting
Switch between Standard SQL, MySQL and PostgreSQL to see dialect-specific keywords highlighted in a different color for easy identification.
How to Use SQL Formatter
The SQL Formatter transforms messy, single-line, or poorly indented SQL queries into clean, readable, and well-structured code. Processing happens entirely in your browser so your database queries and sensitive table names remain private. This tool supports all major SQL dialects including MySQL, PostgreSQL, and SQL Server.
Open the SQL Formatter
Navigate to the SQL Formatter from the developer tools menu. The tool runs completely client-side in your browser, ensuring your SQL queries containing sensitive table names or data patterns are never sent to external servers.
Paste Your SQL Query
Paste your unformatted SQL query into the input area. The tool handles SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, and complex queries with JOINs, subqueries, CTEs, and window functions.
Select Your SQL Dialect
Choose the appropriate SQL dialect for your database system, such as MySQL, PostgreSQL, SQL Server, Oracle, or standard SQL. This ensures dialect-specific keywords and syntax are formatted correctly.
Configure Formatting Preferences
Set your preferred indentation size, keyword casing (uppercase or lowercase), and line break rules. These options let you match your team's SQL coding conventions and style guides.
Review and Export
Examine the formatted SQL in the output panel with syntax highlighting. Copy the result to your clipboard for use in your database client, IDE, or documentation.
Common Use Cases
Query Debugging
Format complex production queries to quickly identify logical errors, missing JOIN conditions, or incorrect WHERE clauses during troubleshooting sessions.
Code Review Preparation
Beautify SQL queries embedded in application code or migration files before submitting pull requests, making them easier for reviewers to read and validate.
Documentation and Knowledge Sharing
Format SQL queries for technical documentation, wiki pages, or runbooks so that team members can understand and maintain database operations.
Learning and Teaching SQL
Use formatted SQL output to study query structure, understand JOIN relationships, and teach SQL best practices to junior developers and analysts.
Pro Tips
- -Use uppercase keywords (SELECT, FROM, WHERE) for better visual distinction between SQL syntax and table or column names.
- -Format complex queries with CTEs and subqueries to make the logical flow easier to follow during code reviews.
- -Always format your SQL before committing to version control so that diffs show meaningful changes rather than whitespace reformatting.
- -Use the tool to standardize SQL style across your team by agreeing on shared formatting preferences.
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