SQL Formatter

Format and beautify SQL queries for MySQL, PostgreSQL, SQL Server, Oracle, SQLite, and more — turns a dense one-liner into clean, indented, readable SQL.

SQL dialect

Your SQL

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Why use SQL Formatter?

SQL generated by an ORM, logged from an application, or copied from a minified source is often unreadable as a single dense line — formatting it by hand means manually re-indenting every clause. A proper formatter handles this mechanically and consistently, respecting the syntax quirks of whichever database dialect you're targeting. This runs entirely in your browser, so query text never has to be pasted into an external server — worth noting if your queries reference internal schema details you'd rather not send anywhere.

Key benefits

Supports 7 SQL dialects
Instant formatting, no install required
Uppercased keywords for consistent style
Free, unlimited use

Features

Dialect-aware formatting (MySQL, PostgreSQL, SQL Server, Oracle, SQLite, MariaDB)
Consistent indentation and line breaks
One-click copy of the formatted result

Popular use cases

Making a minified or logged SQL query readable for debugging
Cleaning up SQL before adding it to documentation or a code review
Standardizing SQL formatting across a team
Reading a dense query generated by an ORM or query builder

How to use SQL Formatter

1
Pick your SQL dialect
MySQL, PostgreSQL, SQL Server, Oracle, SQLite, MariaDB, or standard SQL.
2
Paste your SQL
Any query, however dense or minified.
3
Click Format
Get clean, indented SQL, keywords uppercased.

Frequently asked questions

Why does the dialect matter for formatting?

Different databases have some syntax differences (like backtick-quoted identifiers in MySQL vs. double-quotes in PostgreSQL), so dialect-aware formatting produces output that actually matches your database's conventions rather than a generic guess.

Does this validate my SQL for correctness?

No — it formats whitespace and structure but doesn't check whether the query is semantically valid against a real database schema. Formatting invalid SQL will still produce a (differently formatted) invalid query.

Is my SQL sent to a server?

No — formatting runs entirely in your browser, so query text (which may reference internal table or column names) never leaves your device.

Last reviewed: September 2026

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