SQL Formatter
Format and beautify SQL queries with proper indentation
About SQL Formatter
SQL formatting converts compressed or poorly-structured SQL queries into clean, readable code with proper indentation, keyword capitalization and clause separation. This free SQL Formatter automatically uppercases SQL keywords (SELECT, FROM, WHERE, JOIN, etc.), places each major clause on its own line, and indents column lists — making even the most complex queries easy to read, review and debug.
How to Use SQL Formatter
- 1Paste your SQL query into the input area, or click "Load Sample" to see an example.
- 2Toggle "UPPERCASE keywords" on or off based on your coding style preference.
- 3Click "Format SQL" — keywords are uppercased, clauses get their own lines, and columns are indented.
- 4Copy the formatted SQL and use it in your query editor, code review or documentation.
Common Use Cases
Formatted SQL is not just for readability — it helps you spot missing JOINs, incorrect WHERE conditions and logic errors much faster than single-line queries.
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Frequently Asked Questions
Does SQL formatting change how a query runs?
No. SQL formatting is purely cosmetic — it adds whitespace, line breaks and consistent capitalization. The database engine ignores all whitespace and case in keywords. A formatted query and a minified query produce identical results when executed.
Should SQL keywords be UPPERCASE or lowercase?
SQL keywords are case-insensitive, but the most widely accepted convention is UPPERCASE keywords (SELECT, FROM, WHERE, JOIN) with lowercase table and column names. This visual distinction makes it easier to read queries at a glance, especially in complex statements with many clauses.
Can I format stored procedures and DDL statements?
This formatter handles most standard SQL including SELECT, INSERT, UPDATE, DELETE, JOINs, subqueries and common clauses. Complex stored procedures, CREATE TABLE statements and database-specific syntax (PL/SQL, T-SQL) may produce partial formatting results.
Why do ORMs generate unreadable SQL?
ORMs (like Hibernate, SQLAlchemy, Laravel Eloquent) generate SQL programmatically, optimizing for correctness not readability. They often produce single-line queries with generic alias names. Formatting this SQL helps you understand what the ORM is actually doing to your database.