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SQL Formatter

Format messy SQL into readable, review-friendly queries without leaving the browser. Useful for debugging joins, sharing snippets in tickets, and cleaning up generated SQL before it reaches production docs.

Client-Side Processing
Input Data Stays on Device
Instant Local Execution

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What is SQL Formatter?

SQL Formatter turns compressed, one-line, or inconsistent SQL into a layout that is easier to read line by line. That matters when you are checking joins, following nested conditions, or trying to see why a query is returning the wrong rows in development or production.

It is especially useful for ORM output, copied log statements, and hand-written queries that have lost their structure. Formatting changes whitespace and line breaks only, so you can inspect the query more clearly without changing what it does.

How to Use SQL Formatter

1

Paste your SQL query

2

Click format or see live formatting

3

Copy the formatted result

Common Use Cases

  • Backend developers cleaning up ORM-generated SQL before debugging filters, joins, or ordering issues.
  • Engineers pasting formatted queries into pull requests, tickets, and incident notes so teammates can review them quickly.
  • Data analysts making exported report queries easier to read before sharing them with another team.
  • Support or ops teams inspecting customer-specific SQL snippets copied from logs without reformatting them manually.

Example Input and Output

A realistic query becomes much easier to review once keywords, joins, and conditions are split onto separate lines.

Messy SQL
select u.id,u.email,o.total from users u inner join orders o on u.id=o.user_id where o.status='paid' and o.total>100 and u.deleted_at is null order by o.created_at desc
Formatted SQL
SELECT
  u.id,
  u.email,
  o.total
FROM users u
INNER JOIN orders o
  ON u.id = o.user_id
WHERE
  o.status = 'paid'
  AND o.total > 100
  AND u.deleted_at IS NULL
ORDER BY o.created_at DESC

Privacy

Formatting happens locally in the browser, so pasted queries stay on the device unless you choose to copy or share them yourself.

Best use

Use formatting before code reviews or debugging sessions so joins, filters, and ordering logic are easy to scan line by line.

Frequently Asked Questions

What SQL dialects are supported?
This tool supports standard SQL syntax. Most dialects (MySQL, PostgreSQL, SQLite) work well.
Does formatting change how my query runs?
No. Formatting only changes whitespace, indentation, and line breaks. The SQL keywords, table names, operators, and values remain the same.
Is my SQL sent to a server?
No. The formatter runs in your browser, which is useful when the query contains private table names, internal schema details, or production-like filters.
Can it format SQL copied from logs or ORM debug output?
Yes. One of the most common uses is pasting compressed SQL from logs, database clients, or ORM debug output and turning it into a readable query for troubleshooting.
Why does the formatted result look different from my team style guide?
Formatters normalize SQL according to their own spacing and line-break rules. The result is usually easier to scan, even if it does not match every in-house convention exactly.
Should I use this for very sensitive production queries?
You can, because formatting stays local to the browser. Even so, it is still wise to avoid sharing copied output in chat or tickets if the query contains private customer or schema data.