Transform messy one-liner SQL into readable, properly indented code. Handles SELECT, INSERT, UPDATE, DELETE, CREATE, ALTER, JOINs, subqueries, CTEs (WITH clauses), and CASE expressions.
Color-coded keywords, functions, strings, numbers, and comments make complex SQL with multiple JOINs and subqueries far easier to review and debug.
Choose UPPERCASE keywords (the professional standard), lowercase, or preserve existing casing. Consistent keyword casing makes SQL easier to scan and reduces cognitive load when reading long queries.
All SQL formatting runs entirely in your browser — no queries are ever sent to a server. Safe for production queries containing sensitive table names, column values, and business logic.
A SQL formatter reformats SQL queries with consistent indentation, line breaks, and keyword casing. It makes complex queries with multiple JOINs, subqueries, and CTEs much easier to read and debug without changing what the query does.
No. SQL formatting only changes whitespace and keyword casing, which are stripped by the SQL engine before parsing. A formatted query and its compact version execute identically — formatting is purely for human readability.
Both are valid SQL. The convention of writing keywords in uppercase (SELECT, FROM, WHERE) remains the most common style in professional codebases because it visually separates keywords from table and column names, making queries easier to scan.
SQL dialects are vendor-specific extensions to standard SQL. MySQL uses backtick quoting and LIMIT/OFFSET. PostgreSQL uses double-quote identifiers and RETURNING clauses. SQL Server uses square bracket identifiers and TOP N syntax. This formatter handles standard SQL and common patterns from all major dialects.