SQL Formatter

A SQL formatter (also called a SQL beautifier or SQL pretty-printer) takes messy, single-line, or inconsistently indented SQL queries and reformats them with proper indentation, keyword uppercasing, and logical line breaks. This transforms unreadable queries into clean, well-structured code that's easy to review, debug, and maintain.

SQL queries can quickly become unreadable, especially when they involve multiple JOINs, subqueries, complex WHERE clauses, or CTEs (Common Table Expressions). Whether you're pasting a query from a log file, copying from a colleague's message, or working with auto-generated SQL from an ORM, formatting makes the query's logic immediately visible.

This SQL formatter handles all major SQL operations — SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, and more — with syntax highlighting that color-codes keywords for quick visual scanning. All formatting happens instantly in your browser with no server calls and no data leaving your machine.

1. Paste your SQL query — Copy your raw, unformatted SQL into the input area. It can be a single line, multiple lines, or any mix of cases and spacing.
2. Click Format — The formatter restructures your query with proper line breaks (each major clause on its own line), keyword uppercasing, and logical indentation for AND, OR, ON, SET, and other sub-clauses.
3. Review the highlighted output — SQL keywords are highlighted in blue for quick scanning, making it easy to identify the query structure at a glance.
4. Copy the result — Click "Copy" to copy the formatted SQL to your clipboard, ready to paste into your editor, documentation, or PR review.

• Automatic keyword uppercasing — All SQL keywords (SELECT, FROM, WHERE, JOIN, ORDER BY, etc.) are automatically uppercased for readability and convention compliance.
• Smart indentation — Major clauses (SELECT, FROM, WHERE) start at the base level, while sub-clauses (AND, OR, ON, SET) are indented to show logical nesting.
• Syntax highlighting — SQL keywords are color-coded in the output, making query structure visually clear at a glance.
• String literal preservation — Quoted strings in your SQL are preserved exactly as written — no accidental modification of your data values.
• Broad SQL support — Handles SELECT, INSERT INTO, UPDATE, DELETE FROM, CREATE TABLE, ALTER TABLE, JOINs (INNER, LEFT, RIGHT, FULL, CROSS), CTEs (WITH), UNION, subqueries, and more.
• 100% client-side — Your SQL queries never leave your browser. No server processing, no logging, no data storage.

• Code review prep — Format SQL queries before including them in pull requests or code reviews, making them easy for reviewers to understand.
• Debugging complex queries — Reformat a long single-line query to see its logical structure, making it easier to spot missing JOINs, incorrect WHERE conditions, or misplaced clauses.
• Documentation — Format SQL for technical documentation, README files, wiki pages, or API docs where readability matters.
• Log analysis — Copy SQL queries from application logs or query profilers and format them for analysis.
• Standardizing team conventions — Ensure all SQL in your project follows the same formatting style with uppercase keywords and consistent indentation.