SQL Formatter & Beautifier
Format and beautify SQL queries online for free. Pretty-print messy SQL with dialect support — all in your browser, nothing uploaded.
Paste a SQL query above to format and beautify it.
100% private — your SQL is formatted entirely in your browser and never uploaded to any server.
What Is a SQL Formatter?
A SQL formatter takes a cramped, single-line, or inconsistently indented query and rewrites it into clean, readable SQL — placing each clause on its own line, indenting nested expressions, and normalising the case of keywords. The logic of the query is never changed; only the whitespace and casing are adjusted. Readable SQL is far easier to review in a pull request, debug when a result looks wrong, and maintain months later when you have forgotten how a 12-table join fits together.
This tool runs the well-known sql-formatter engine directly in your browser. That means your query is processed locally on your own device and is never sent over the network, so you can safely beautify production queries that reference internal schemas, column names, or business logic without anything leaving your machine.
How to Format Your SQL
- Paste your SQL into the input box, or click Try an example to load a realistic multi-join query.
- Pick the dialect that matches your database — PostgreSQL, MySQL, BigQuery, SQL Server, and more.
- Choose your indentation (2 spaces, 4 spaces, or tabs) and your preferred keyword case.
- Click Format SQL, then copy the beautified result straight into your editor or migration.
Why Consistent SQL Formatting Matters
Teams that share a single SQL style spend less time arguing about diffs and more time reading intent. Consistent indentation makes the structure of joins, subqueries, and CTEs visible at a glance, while uppercase keywords separate SQL syntax from your own table and column names. Because everything here happens client-side, the formatter is fast, works offline once loaded, and keeps even the most sensitive queries entirely private.
Frequently Asked Questions
Is this SQL formatter free and private?↓
Yes. It is completely free with no sign-up, and it runs entirely inside your browser. The SQL you paste is never uploaded to a server, logged, or stored — making it safe to format queries that contain table names, schemas, or other proprietary information.
Which SQL dialects are supported?↓
You can format Standard SQL, PostgreSQL, MySQL, MariaDB, SQLite, BigQuery, SQL Server (T-SQL), and PL/SQL (Oracle). Choosing the right dialect helps the formatter understand dialect-specific keywords, quoting, and syntax so indentation and casing come out correctly.
Can I control indentation and keyword casing?↓
Yes. Choose 2 spaces, 4 spaces, or tab indentation, and set keywords to UPPERCASE, lowercase, or preserve the original case. These options match the most common team style guides so the output drops straight into your codebase.
Why does formatting fail or look odd for my query?↓
The formatter beautifies whitespace and casing but does not execute or validate your SQL. If a query uses syntax the selected dialect does not recognise, switch to a closer dialect (for example PostgreSQL or T-SQL). Incomplete or non-SQL text may format unexpectedly because there is nothing valid to indent.