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Free SQL Formatter & Beautifier

Paste messy SQL and get clean, indented, readable output instantly — free, no signup, runs entirely in your browser.

✓ Free✓ No Signup✓ Runs in Browser✓ Nothing Uploaded
Input SQL
Formatted Output
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Practise it · SQL

Why a join returns duplicate rows

You just tidied a JOIN — can you spot the one that quietly triples the revenue total. Hard · about 20 min · runs in your browser, no signup.

Try the problem →All SQL problems

How to use SQL Formatter

1

Paste your SQL

Paste raw or minified SQL into the input box on the left.

2

Click Format or Minify

Format adds indentation and keyword casing. Minify collapses it to one compact line.

3

Copy the output

Click "Copy Output" to copy the formatted SQL to your clipboard.

Frequently Asked Questions

Which SQL dialects does this formatter support?

This formatter handles standard SQL including SELECT, INSERT, UPDATE, DELETE, CREATE TABLE, ALTER TABLE, and most JOIN types. It works with MySQL, PostgreSQL, SQLite, SQL Server, and Oracle syntax. Dialect-specific functions and stored procedures may not format perfectly but the core query structure always formats correctly.

Does this formatter send my SQL to a server?

No. The SQL formatter runs 100% in your browser using JavaScript. Your SQL query never leaves your device. This makes it safe to use with sensitive queries, internal database schemas, and proprietary data.

What is the difference between Format and Minify?

Format adds indentation, line breaks, and keyword casing for human readability — ideal for code reviews, documentation, and debugging. Minify removes all whitespace to produce a compact single-line query — useful for embedding SQL in config files or logging.