About this tool
Format SQL queries to make clauses, joins, and conditions easier to review.
SQL Formatter exists for the moment when a query works, but the raw text is too compressed to review comfortably. It makes joins, conditions, and clause boundaries easier to inspect before debugging, sharing with teammates, or pasting into dashboards and query editors.
- Uses sql-formatter 15.7.2 with Standard SQL, PostgreSQL, MySQL, SQLite, T-SQL, PL/SQL, BigQuery, Snowflake, and 13 additional dialect identifiers.
- Controls indentation, keyword and function case, expression width, logical operator placement, query spacing, and semicolon placement.
- Runs locally, enforces input and output bounds, and requires generated output to remain stable when formatted again with the same policy.
How to use SQL Formatter
Paste the SQL query, format it, and then scan the clause structure before copying it back into your editor or review thread. For very long queries, use the formatter as a readability step first so you can spot misplaced joins, filters, or nested logic faster.
When this tool is useful
- Uses sql-formatter 15.7.2 with Standard SQL, PostgreSQL, MySQL, SQLite, T-SQL, PL/SQL, BigQuery, Snowflake, and 13 additional dialect identifiers.
- Controls indentation, keyword and function case, expression width, logical operator placement, query spacing, and semicolon placement.
- Runs locally, enforces input and output bounds, and requires generated output to remain stable when formatted again with the same policy.
Examples you can test
Load an example, compare the result with the expected output, then replace it with your own input.
Format a compressed SELECT query
Example input
select id,name from users where active=1 order by created_at desc
Expected output
Readable SQL with SELECT, FROM, WHERE, and ORDER BY on separate lines
Formatting makes query review easier before debugging or sharing in a pull request.
Inspect a join-heavy query
Example input
select * from orders o join users u on u.id=o.user_id where o.status='paid'
Expected output
Indented query with join and filter structure visible
Readable joins make it easier to catch missing conditions or broad result sets.
Validation checklist
- Use formatting for readability, not as proof that the query is logically correct.
- Review joins, filters, and limits before running a query against production data.
- Keep dialect-specific syntax in mind when copying formatted SQL back into a database tool.
- Check parameter placeholders after formatting so prepared statements still match the application code.
- Avoid running formatted queries until destructive statements and broad updates have been reviewed.