SQL Formatter & Query Beautifier
Transform unreadable, minified SQL queries into clean, standardized, beautifully indented database statements.
What is the Online SQL Formatter?
The NexTools Online SQL Formatter is a free, privacy-first developer utility designed to clean up, restructure, and beautify complex database queries in real time. Messy, unformatted, or minified SQL queries produced by ORMs (like Prisma, Hibernate, or Entity Framework) or raw query logs can be impossible to read and debug. This tool automatically reorganizes clauses, indents subqueries, aligns JOIN statements, and standardizes SQL keywords into standardized uppercase notation.
Unlike online formatters that send your proprietary database schema and table names across the web, NexTools processes 100% of your SQL queries locally inside your browser's JavaScript engine. Your queries, table schemas, and data structures never touch an external server, making it safe for enterprise and production queries.
Key Capabilities & Features
Multi-Dialect Compatibility
Full syntax recognition for MySQL, PostgreSQL, SQLite, Microsoft SQL Server (T-SQL), Oracle PL/SQL, and ANSI SQL standards.
Keyword Normalization
Converts SQL keywords (SELECT, FROM, WHERE, JOIN, GROUP BY) into clean UPPERCASE or lowercase to maintain team coding style guides.
Subquery & Clause Indentation
Hierarchically indents nested SELECT subqueries, CTEs (WITH expressions), CASE WHEN branches, and UNION statements.
SQL Minification Mode
Need to pack a query into an environment variable or single-line shell script? Minify multi-line queries into a compact single line with one click.
How to Beautify SQL Queries in 3 Steps
Paste Raw SQL Query
Copy your query from your ORM debug logs, database management GUI, or code editor and paste it into the Raw SQL Input box.
Configure Dialect & Indentation
Select your preferred indentation (2 or 4 spaces) and choose whether keywords should be forced to UPPERCASE.
Copy or Download Formatted Code
Click "Format SQL" to see instant results. Copy the formatted SQL to your clipboard or download it as a ready-to-run `.sql` file.
Frequently Asked Questions (FAQ)
Is my SQL database query sent to your servers?
No. NexTools performs all lexical analysis, tokenization, and re-indentation entirely in your web browser. Neither your database structure nor confidential data values leave your machine.
Does this SQL formatter support complex queries with CTEs and Window Functions?
Yes. It handles Common Table Expressions (`WITH ... AS (...)`), window functions (`OVER (PARTITION BY ...)`), nested subqueries, CASE WHEN statements, and multi-table JOIN structures.
Can this tool minify SQL queries for production use?
Yes. Clicking "Minify (Single Line)" strips line breaks, superfluous spaces, and comments while keeping string literals intact, perfect for embedding queries in application configuration files.