SQL Formatter & Beautifier

Format and beautify SQL queries with keyword highlighting, locally in your browser.

Local processing: your data never leaves this device

Dialect:

Raw SQL

Formatted SQL

Why beautify SQL before sharing it?

A SQL table without format or spaces is immensely hard to refactor. A local syntax viewer organizes your subqueries and JOINs maximizing readable clarity.

Never paste internal SQL queries into a remote validator

Statements reveal real column names and corporate schemas. We shield ourselves using in-browser WebAssembly compiled engines to protect your DB topology.

What this tool does

Unformatted SQL becomes hard to review quickly, especially when joins, subqueries and long WHERE clauses pile up. This page helps you clean query layout so logic is easier to inspect before execution or review.

Reformats SQL queries with consistent keyword casing, indentation and line breaks so complex statements are easier to read.
Works with common SQL dialects including SELECT, INSERT, UPDATE, DELETE, JOIN chains and subqueries.
Helps developers prepare queries for code review, documentation and debugging by eliminating inconsistent style from copied or generated SQL.

How to use it

1
Paste the raw or unformatted SQL query into the input area.
2
Click Format to produce a readable, consistently styled version.
3
Review the output to confirm the structure matches your intent.
4
Copy the formatted SQL into your code review, documentation, ticket or query tool.

Example

A developer pastes a generated ORM query that spans a single line and formats it to verify the join conditions and WHERE clause before debugging a slow-query issue.

SELECT u.id,u.name,o.total FROM users u INNER JOIN orders o ON u.id=o.user_id WHERE u.active=1 ORDER BY o.total DESC

SELECT
  u.id,
  u.name,
  o.total
FROM users u
INNER JOIN orders o ON u.id = o.user_id
WHERE u.active = 1
ORDER BY o.total DESC

Use cases

Cleaning up SQL pasted from logs or application traces.
Preparing queries for code review, tickets or documentation.
Reading complex joins and filters more clearly during debugging.

Common mistakes

Treating formatted SQL as optimised SQL

Formatting improves readability but does not change query execution plans, indexes or performance.

Copying formatted output directly into an ORM

ORMs often use parameter placeholders and fluent APIs. Formatted raw SQL may not map directly back to ORM syntax.

Forgetting dialect differences

SQL formatting conventions and supported syntax differ between MySQL, PostgreSQL, SQL Server and SQLite. Check dialect-specific keywords after formatting.

FAQ

Does this support all SQL dialects?

It handles standard SQL keywords well. Dialect-specific functions and syntax may render differently depending on the formatter settings.

Will formatting change my query logic?

No. The formatter only changes whitespace, casing and line breaks. It does not rewrite or optimise the query.

Does this upload my SQL?

No. Formatting happens locally in the browser.

Can I use this before a code review?

Yes. Consistent formatting makes query logic easier to follow during review and reduces noise from style inconsistencies.

Is this useful for debugging slow queries?

Formatting helps you read complex joins and conditions more clearly, which can reveal logic problems, but actual performance analysis still requires query plans and database tooling.

Privacy and security

Formatting happens locally in the browser.
No query text is uploaded for processing.
That is safer when SQL includes internal table names or sensitive business logic.

Related tools

Related tools for the next step in the same workflow:

SQL -> C# Entity Generator Diff Checker JSON Formatter & Validator

Next step

Format the query locally, then compare revisions or move into adjacent data tools if the workflow continues.