SQL Formatter & Beautifier Online — Free
Format, beautify, and indent SQL queries with uppercase keywords.
Frequently Asked Questions
How do I format SQL queries online?
Paste your SQL query into the input box. Our formatter adds proper indentation, line breaks, and uppercases keywords (SELECT, FROM, WHERE, etc.) for readability.
Which SQL dialects are supported?
Standard SQL, MySQL, PostgreSQL, SQL Server, Oracle, MariaDB, and SQLite are all supported. The formatter handles common syntax for all major databases.
Does this uppercase SQL keywords?
Yes, SQL keywords (SELECT, FROM, WHERE, JOIN, GROUP BY, etc.) are automatically uppercased for readability and consistency.
Can I minify SQL queries?
Yes, the Minify button removes comments and collapses whitespace to produce compact SQL suitable for programmatic use.
Privacy First: All processing happens directly in your browser. Your data never leaves your device.
About SQL Format
Formatting a query is the fastest way to understand one you did not write. Consistent indentation exposes join structure and subquery nesting that a single-line query hides completely.
Why formatting is a review tool
SQL generated by an ORM, or pulled from a slow-query log, typically arrives as one very long line. Formatted onto multiple lines with clauses aligned, the shape of the query becomes visible: how many tables are joined, where the correlated subquery sits, which conditions are in the WHERE clause versus the join predicate.
That structure is usually what you are looking for when a query is slow. A join condition that has drifted into the WHERE clause, or a subquery evaluated per row, is obvious in formatted SQL and invisible in a single line.
Dialects are not interchangeable
SQL is standardised in principle and divergent in practice. Identifier quoting differs — double quotes in PostgreSQL, backticks in MySQL, square brackets in SQL Server — as do the string concatenation operator, the limit-and-offset syntax, and the entire set of built-in functions.
A formatter parses well enough to lay out clauses, but formatting is not translation. A query formatted here still targets whichever database it was written for.
Formatting does not change execution
Whitespace is insignificant to the parser, so a formatted query is equivalent in behaviour and performance to the compressed original. The exception is caching layers that key on exact query text: some systems treat a reformatted query as a distinct statement and will plan it afresh.
One practical caution — avoid pasting queries containing literal production values such as customer identifiers or credentials into any online tool. Parameterise first. This tool runs entirely in your browser and sends nothing anywhere, but that is a habit worth keeping regardless of the tool.