SQL Formatter & Beautifier

What is SQL Formatting?

Key Features

Examples

select u.id,u.name,count(o.id) as orders from users u left join orders o on o.user_id=u.id where u.active=true group by u.id,u.name order by orders desc

select * from products where category_id in (select id from categories where parent_id=(select id from categories where slug='electronics')) and price between 100 and 500

with recent as (select user_id,max(created_at) last_seen from sessions group by user_id) select u.email,r.last_seen from users u join recent r on r.user_id=u.id where r.last_seen> now() - interval '7 days'

insert into logs(level,message,created_at) values('info','started',now()),('warn','slow query',now()),('error','timeout',now())

Common Use Cases

Code review

Format queries before opening a pull request so reviewers see clean, consistent SQL.

Debugging

Beautify a one-line query copied from a log or ORM to spot the problem fast.

Documentation

Produce neatly indented SQL examples for runbooks and tech docs.

Embedding

Minify a query to a single line before inlining it in application code or config.

Technical Details

Dialect-aware parsing

Built on the sql-formatter engine, which understands dialect-specific syntax, quoting and functions.

Browser-based

Runs entirely client-side; no SQL ever leaves your device or hits a server.

Comment-safe minify

Minification strips line and block comments and preserves quoted string literals exactly.

Best Practices

Pick the right dialect

Choosing your actual database avoids mis-formatting dialect-specific syntax like backticks or T-SQL brackets.

Standardize keyword casing

Agree on UPPERCASE keywords across the team for consistent diffs.

Don't minify what you'll edit

Keep formatted SQL in source files; minify only for embedding or transport.

Frequently Asked Questions