Instant SQL Formatter & Beautifier
Format SQL instantly for clarity and consistency.
What is SQL Formatter?
A formatter that cleans SQL without touching semantics. Paste a script, get stable, readable output that holds up in code review, migrations, and incident work.
What it guarantees
- Deterministic output from the same input
- No reordering of clauses, predicates, or hints
- Inline and block comments preserved
- Multiple statements handled in sequence
- No storage of input or output
What it covers
- Common DDL and DML:
SELECT,INSERT,UPDATE,DELETE,CREATE,ALTER,DROP - Joins, CTEs, window functions, subqueries, CASE expressions
- Consistent spacing, line breaks, and indentation for long statements
Scope
The tool focuses on standard SQL used across popular relational engines. Procedural blocks are not a target. Minification is not included.
Built for SQL Server and T-SQL
This is a SQL formatter tuned for Microsoft SQL Server. It handles T-SQL the way SQL Server actually parses it: bracketed identifiers, variables and parameters, CTEs, window functions, MERGE, and stored-procedure bodies all come back clean instead of mangled. Paste a messy query or a 400-line proc, click format, and read it.
Why bother? Unformatted SQL is where bugs hide. Consistent line breaks and indentation make a bad join, a missing filter, or an accidental cross join obvious in review, and they make migrations and incident triage faster. Red9 has tuned SQL Server performance across 10,000+ databases, and step one is almost always reading the query clearly. If a formatted query turns out to be the slow one, our SQL Server consultants can take it from there.
Frequently Asked Questions
Will this change execution behavior?
How does it behave on very large scripts?
It runs in the browser. Modern desktops handle long migrations and seed files well.
What happens on a syntax error?
Your text stays intact. The formatter surfaces the problem area so you can fix and retry.
Are comments and batch separators respected?
Yes. Line and block comments are kept. Statements separated by semicolons are processed in order.
Is any of my SQL stored anywhere?
No. The page does not store or log input, output, or metadata.