SQL Formatter

SQL Formatter is a fast, powerful, and privacy-focused SQL formatting and query optimization tool designed for database administrators, backend developers, data engineers, and students.

Transform messy, unreadable SQL code into clean, standardized, and readable statements in seconds. Work completely offline with zero telemetry or network transmission—your database queries and schemas never leave your device.

KEY FEATURES:

• Smart SQL Beautifier & Minifier
Instantly format complex queries with customizable indentation styles (spaces or tabs), line-wrapping thresholds, comma placement (leading or trailing), and keyword casing (UPPERCASE, lowercase, or Title Case). Need compact queries for production code or configuration files? Switch to minify mode with a single tap.

• Multi-Dialect Syntax Support
Format and analyze queries accurately according to dialect-specific keywords and syntax rules:
- Standard ANSI SQL
- PostgreSQL
- MySQL / MariaDB
- SQLite
- Oracle PL/SQL
- Microsoft SQL Server (T-SQL)
- Snowflake
- Google BigQuery

• Offline Query Optimizer & Index Advisor
Get immediate actionable insights to improve query performance. The built-in optimizer highlights common anti-patterns such as unindexed wildcard searches (LIKE '%...'), SELECT * bottlenecks, missing JOIN predicates, and redundant subqueries.

• Deep Syntax Validation & Linting
Catch missing closing parentheses, unmatched string quotes, misplaced semicolons, and invalid keyword orders before executing queries against your database.

• Interactive SQL Code Editor
- Line numbering and active line highlighting
- Syntax highlighting tailored for database keywords, literals, and functions
- Quick undo/redo and one-tap clipboard copy actions
- Live character, word, and statement counters

• Snippets & Query History
Save frequently used templates and schema definitions with custom tags. Access your full query formatting history locally with instant search, filtering, and restore capabilities.

100% PRIVACY & OFFLINE FIRST:
All parsing, formatting, tokenizing, and optimization logic executes entirely on-device. No accounts, external servers, or internet connections are required to format and validate your SQL code.