SQL Formatter

The SQL Formatter formats SQL queries with consistent indentation and keyword highlighting, making complex code much easier to read and review. Anyone who works with databases knows that queries generated by ORMs, exported from BI tools, or written under time pressure often arrive as a dense unstructured block.

To use it, paste your query into the input field. The formatter automatically identifies keywords like SELECT, FROM, WHERE, JOIN, GROUP BY, and ORDER BY, breaking the query into properly indented lines that reflect the logical structure of each clause and sublevel. The result is readable SQL you can copy and use immediately.

The tool is especially helpful when analyzing slow queries: with the full structure clearly formatted, it becomes much easier to spot unnecessary JOINs, poorly placed subqueries, or WHERE conditions that could benefit from an index. It also simplifies code reviews, where a colleague needs to quickly understand what a query does.

Supports the most common dialects — MySQL, PostgreSQL, SQLite, and standard SQL — with no configuration needed. No sign-up, no plugin, no IDE extension required. Everything runs in the browser, and no query or data is transmitted externally.