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How to Use SQL Formatter: Complete Guide (2026)
Learn how to use sql formatter free online — no signup, no download. Follow our step-by-step guide below.
What is SQL Formatter?
Format SQL queries for readability with customizable indentation, keyword casing (upper/lower), and line break rules. Supports SELECT, INSERT, UPDATE, DELETE, JOIN, and complex subqueries. Essential for code reviews and debugging slow queries.
- 100% browser-based — no data uploaded to servers
- Free to use — no signup required
- Instant results — no waiting
- Works on all devices — mobile, tablet, desktop
How to Use SQL Formatter: Step-by-Step
- 1
Paste SQL query
Type or paste your SQL statement into the input area.
- 2
Set formatting options
Choose keyword case (UPPER, lower, or Original), indentation size, and line break style.
- 3
Format
Click Format. The beautified SQL appears in the output panel.
- 4
Copy or download
Copy to clipboard or save as a .sql file.
Common Use Cases
Code reviews
Format messy SQL from PRs to make reviews faster and more accurate.
Debugging slow queries
Beautify complex JOIN queries to understand the execution plan.
ORM output inspection
Format SQL logged by ORMs (Prisma, TypeORM, Django ORM) to understand what queries are being generated.
FAQ About SQL Formatter
Which SQL dialects are supported?
Standard SQL, MySQL, PostgreSQL, SQLite, and SQL Server syntax are all supported.
Does it optimize query performance?
No. It only formats for readability. For performance optimization, use EXPLAIN and indexing strategies.
Is my query data private?
Yes. All formatting happens in your browser. Table names and data in the query are not uploaded.
Ready to Try SQL Formatter?
No signup. No download. 100% free.