SQL Formatter
Analyzes hard-to-read SQL against your chosen DBMS syntax and rearranges it into a readable form.
You can enter multiple SQL statements separated by semicolons.
Sample SQL
Loads a sample query for the selected DBMS.
How to use
Choose a DBMS and options, enter SQL, then run Format. This tool does not execute SQL and does not guarantee complete syntax validation.
Processed only in your browser
Your SQL is processed in the browser and is not sent to a server or stored.
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What does the SQL Formatter do?
It formats or minifies SQL using the selected database dialect, with indentation, keyword case, tab width, comma style, and placeholder controls.
How to use it
- 1
Choose a SQL dialect
Select MySQL, PostgreSQL, SQL Server, Oracle, SQLite, or the closest supported syntax.
- 2
Set formatting options
Choose indentation, keyword case, comma style, and placeholder handling.
- 3
Format, review, and copy
Check that database-specific syntax is preserved before using the result in your editor or migration.
Practical examples
Readable query
SELECT id, name
FROM users
WHERE active = 1;Compact query
SELECT id,name FROM users WHERE active=1;Processing rules and limitations
Formatting is not validation
A formatted query can still contain invalid SQL, missing objects, or logic errors.
Dialect matters
Quoting, operators, clauses, and placeholders differ by database, so choose the intended dialect.
Comments and literals
The formatter aims to preserve their content, but important production queries should be compared before execution.
SQL stays in your browser
Formatting and minification run locally. Queries are not executed, sent to a database, or stored by this site.
Frequently asked questions
Does this run my SQL?
No. It only transforms text and never connects to a database.
Can formatting change query behavior?
It is designed to preserve semantics, but vendor-specific syntax should always be reviewed before execution.
Which dialect should I choose?
Select the database that will execute the query; use the closest option only when its syntax is compatible.
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