SQL Formatter Professional SQL Beautification Tool

Advanced SQL formatter powered by native sql-parser library integration. Format, beautify, and minify SQL queries with superior performance and reliability. Supports both minimal and beautify formatting modes with comprehensive syntax highlighting and error detection.

🚀 Native Library

🎨 Dual Format Modes

⚡ High Performance

📥 Download DevHelper 👀 See Features

DevHelper SQL Formatter Screenshot showing formatted SQL query with syntax highlighting

Advanced SQL Formatting Features

Everything you need for professional SQL query formatting and optimization.

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Native Library Integration

Enhanced with native sql-parser library for superior SQL formatting performance. 95% code reduction while improving reliability and speed over custom tokenization implementations.

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Dual Format Modes

Choose between minimal formatting for compact queries or beautify mode for enhanced readability with proper indentation and keyword alignment.

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Syntax Highlighting

Color-coded SQL syntax highlighting with support for keywords, functions, operators, strings, and comments for improved code readability.

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Smart Indentation

Intelligent indentation and alignment of SQL clauses, subqueries, and complex expressions for maximum readability and maintainability.

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High Performance

Rust-based backend delivers exceptional performance for large SQL files and complex queries with minimal memory usage and fast processing.

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Robust Error Handling

Comprehensive error detection with detailed messages and fallback mechanisms for handling malformed or complex SQL structures.

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Query Analysis

Character and line count tracking helps analyze query complexity and optimize for performance and readability standards.

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Multi-SQL Support

Format multiple SQL statements, stored procedures, functions, and complex database scripts with consistent styling and structure.

How to Use SQL Formatter

Format your SQL queries professionally in just a few simple steps.

Input Your SQL

Paste your SQL query or script into the input area. DevHelper handles everything from simple SELECT statements to complex stored procedures.

Choose Format Style

Select between minimal formatting for compact output or beautify mode for enhanced readability with proper indentation and spacing.

View Formatted Result

See your SQL formatted with syntax highlighting, proper alignment, and improved structure for better code maintainability.

Copy & Use

Copy the formatted SQL with one click and paste it into your database client, code editor, or documentation.

Perfect for These Development Tasks

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Database Development

Format SQL queries, stored procedures, and database scripts for better readability and team collaboration in database development projects.

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Code Review & Documentation

Standardize SQL formatting across your team, prepare queries for documentation, and ensure consistent coding standards in database projects.

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Query Optimization

Analyze complex queries by formatting them for better visibility of joins, subqueries, and performance bottlenecks in database optimization tasks.

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Educational & Training

Format SQL examples for tutorials, training materials, and educational content with consistent styling and proper structure.

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Legacy Code Maintenance

Clean up and format legacy SQL code for better maintainability, debugging, and modernization of existing database applications.

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Reporting & Analytics

Format complex analytical queries, reporting SQL, and data warehouse scripts for better understanding and maintenance.

Frequently Asked Questions

What makes DevHelper's SQL formatter special?

DevHelper uses native ParquetViewer library integration for superior performance and reliability. This Rust-based backend provides 95% better efficiency compared to custom implementations while ensuring robust error handling.

What SQL dialects are supported?

DevHelper's SQL formatter supports standard SQL syntax and is compatible with major database systems including PostgreSQL, MySQL, SQL Server, Oracle, SQLite, and other SQL-compliant databases.

Can it handle large SQL files?

Yes! The native ParquetViewer integration provides exceptional performance for large SQL files, complex queries, and batch processing with minimal memory usage and fast response times.

What's the difference between minimal and beautify modes?

Minimal mode provides compact formatting while preserving readability. Beautify mode adds enhanced indentation, keyword alignment, and visual structure for maximum code clarity and maintainability.

Does it preserve SQL comments and structure?

Yes, DevHelper preserves SQL comments, maintains logical query structure, and handles complex nested queries, CTEs, and stored procedures while improving overall formatting.

How does error handling work?

DevHelper provides robust error detection with detailed messages and fallback mechanisms. If the primary formatter encounters issues, backup systems ensure you still get usable formatted output.