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Guide
About the SQL Formatter
A long SQL query crammed onto one line is hard to read and harder to review. This formatter takes messy SQL and lays it out cleanly — keywords aligned, clauses on their own lines, consistent indentation — so it's easy to scan and maintain. It understands the syntax of several database dialects, so it formats MySQL, PostgreSQL, SQL Server, and others correctly.
Paste a query, pick your dialect and style, and copy the tidy result. Everything runs in your browser, so even queries against sensitive schemas never leave your device.
Why dialect matters
SQL dialects differ in quoting, functions, and keywords — MySQL uses backticks for identifiers, PostgreSQL and the standard use double quotes, and SQL Server has its own T-SQL extensions. Choosing the right dialect helps the formatter parse and lay out your query correctly rather than guessing.
Consistent style, easier reviews
Formatting isn't just cosmetic. A consistent layout — uppercase keywords, one clause per line — makes queries easier to diff in code review and easier for the next person to understand. Running SQL through a formatter before committing keeps a codebase's queries uniform regardless of who wrote them.
How to use it
- 1Paste your SQL query into the input.
- 2Select the database dialect (MySQL, PostgreSQL, and so on).
- 3Choose keyword casing and indentation.
- 4Copy the formatted query.
Frequently asked questions
Which SQL dialects are supported?
Standard SQL plus MySQL, PostgreSQL, SQLite, SQL Server (T-SQL), BigQuery, Oracle PL/SQL, and Snowflake. Picking the right one gives the most accurate formatting.
Does it change what my query does?
No. Formatting only adjusts whitespace, line breaks, and keyword casing. The query logic is unchanged.
Should keywords be uppercase?
It is a common convention that makes keywords stand out from identifiers, but it is a style choice. The tool lets you use uppercase, lowercase, or preserve the original.
Can it format very long or complex queries?
Yes. It handles joins, subqueries, CTEs, and long clause lists, laying them out for readability.
Is my SQL uploaded anywhere?
No. Formatting runs entirely in your browser, so your queries and schema names stay private.