SQL Formatter

Format SQL queries for readability and code review. Free online developer tool for fast browser-based work.

What is this tool?

SQL Formatter adds structure and line breaks to queries so joins, filters, grouping and ordering are easier to review. It helps turn dense SQL into something a teammate can read.

How to use

Paste a SELECT, INSERT, UPDATE or other SQL statement.
Format the query and inspect clauses, joins, aliases and nested expressions.
Copy the result into a code review, debugging note or internal documentation page.

SQL

select * from users where active = 1 order by created_at desc

Output

Practical example

Formatting makes a dense query easier to scan before it enters review.

Before: select id,name from users where active=1 order by created_at desc
After:
SELECT id, name
FROM users
WHERE active = 1
ORDER BY created_at DESC

API

Use API documentation for repeatable development utilities and test examples around request and data formatting.

View API Docs

When to use

Query review

Make WHERE, JOIN and ORDER BY clauses easier to inspect.

Test setup

Keep seed and assertion queries readable in test notes.

DOC

Runbooks

Prepare SQL snippets for troubleshooting documentation.

PAIR

Collaboration

Share readable examples in tickets and pull requests.

Privacy

Remove production table dumps, customer values and credentials before pasting SQL examples. Prefer anonymized query shapes.

Frequently asked questions

Does formatting change query behavior?

It should only change whitespace and casing, not the meaning of the SQL statement.

Can this optimize SQL performance?

No. It improves readability. Query planning and indexing still need database-specific analysis.

Should I paste production queries?

Use reduced or anonymized examples when queries contain sensitive table names or customer filters.

Limitations / when not to use

Formatting does not validate that the SQL is safe, optimized or correct for your database engine. Review performance and permissions separately.