SQL Formatter

What is a SQL Formatter?

A SQL formatter takes a SQL query — often written or generated as one long, hard-to-read line — and reformats it with clean indentation, aligned clauses, and consistent keyword casing. Well-formatted SQL makes complex queries with joins, subqueries, and conditions far easier to read, review, and debug.

Our SQL Formatter is dialect-aware, supporting Standard SQL, MySQL, PostgreSQL, SQLite, MariaDB, BigQuery, and SQL Server. It understands the syntax of each so it can format queries correctly rather than applying generic rules.

How to Format SQL

• Paste your SQL query, or click Sample to load an example
• Select the dialect that matches your database
• Choose 2-space or 4-space indentation
• Toggle Uppercase keywords to capitalize SELECT, FROM, WHERE, and so on
• Copy the formatted query to use in your code, migration, or report

Why Format Your SQL?

Readable SQL is easier to understand and less likely to hide bugs. When clauses are on their own lines and keywords are consistently cased, you can quickly trace which tables are joined, what conditions apply, and how subqueries nest. This is invaluable when reviewing queries in code review or debugging slow or incorrect results.

Formatting also produces cleaner diffs in version control for migrations and stored procedures, and it standardizes the style of SQL copied from different sources or generated by ORMs and query builders.

Privacy

Formatting runs entirely in your browser. Your queries — which may reference proprietary schemas or contain sensitive logic — are never uploaded to a server, so the tool is safe for confidential work.