Instant SQL Formatter
Professional-grade SQL beautifier. Optimize your queries for readability, debugging, and code reviews instantly.
Why Use an SQL Formatter?
In modern software development, maintaining clean database code is as critical as application code. Raw SQL queries generated by ORMs, logging tools, or legacy systems are often unreadable “blobs” of text. The Instant SQL Formatter transforms these into structured, readable code blocks.
🐞 Legacy Code Debugging
When inheriting a 500-line stored procedure, formatting is the first step to understanding logic flow and spotting syntax errors.
📝 Code Reviews
Standardize SQL indentation before submitting Pull Requests. Consistent formatting reduces cognitive load for reviewers.
📚 Educational Purposes
For students and junior devs, seeing SQL keywords capitalized and properly indented helps visualize the query structure.
⚙️ Performance Tuning
Formatting complex JOINs and Subqueries makes it easier to identify redundant logic or missing indexes during optimization.
Supported SQL Dialects & Features
Our formatter uses a generic SQL parsing engine designed to be compatible with the most widely used relational database management systems (RDBMS). Whether you are a Data Analyst, Backend Engineer, or DBA, this tool supports your workflow.
- PostgreSQL: Perfect for formatting complex JSONB queries and PL/pgSQL functions.
- MySQL / MariaDB: Handles standard syntax for web application backends.
- SQL Server (T-SQL): Formats stored procedures and triggers effectively.
- Oracle (PL/SQL): Cleans up nested subqueries common in enterprise environments.
- SQLite: Great for mobile and edge computing database queries.
Frequently Asked Questions
No. Privacy is our top priority. This tool operates 100% client-side using JavaScript. Your sensitive queries, table names, and logic never leave your browser window.
Yes. You can paste a single-line minified query (often found in server logs), and the tool will expand it into a multi-line, indented format.
Standard SQL convention suggests capitalizing reserved words like SELECT, FROM, and WHERE while keeping table and column names in lowercase or their original case. This improves readability significantly.