The formatter handles common SQL structure, including SELECT lists, joins, subqueries, common table expressions, CASE expressions and multi-statement scripts. Dialect selection matters because PostgreSQL dollar quotes, MySQL backticks, SQL Server brackets and warehouse-specific keywords are not interchangeable.
Private browser utility / Developer
Free SQL Formatter
Runs entirely in your browser - no upload, no sign-up.
SQL input
Formatted SQL
What does an SQL formatter do?
An SQL formatter rewrites a cramped or inconsistently styled query with predictable line breaks, indentation, spacing and keyword casing. Choose the database dialect and your preferred style, then format and copy the readable result. The query text stays in your browser and is never submitted to a database.
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How to use
- 01Paste your SQL
Add one query or a multi-statement script to the SQL input panel, or load the example.
- 02Choose the dialect and style
Select Standard SQL, PostgreSQL, MySQL, SQLite, SQL Server, BigQuery or Snowflake, then set keyword casing and indentation.
- 03Format the query
Select Format SQL or press Ctrl+Enter on Windows and Linux, or Command+Enter on macOS.
- 04Copy or download
Review the formatted output, then copy it to the clipboard or save it as a .sql file.
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Who it's for
- Developers cleaning up an ORM query copied from application logs before debugging it.
- Data analysts making joins, filters and window expressions easier to scan before sharing a query.
- Reviewers applying consistent indentation and keyword casing to a migration or pull request.
- Database learners revealing the clause hierarchy in a long query without executing it.
FAQ
Is my SQL query uploaded?
No. The formatter and its dialect grammars run locally in your browser. Your query text is not sent to a formatting server or database, which makes the tool suitable for private schema names and business logic. Avoid sharing sensitive query results through any site unless you have permission.
Is this SQL formatter free?
Yes. You can format, copy and download SQL without an account, payment or usage limit. Processing happens on your device, so there is no server queue. Very large scripts are limited only by the memory and processing power available in your browser.
How much SQL can I format at once?
There is no fixed character limit in the tool. A normal query or migration script should format quickly. For a very large generated dump, format smaller sections so the browser stays responsive and so each error location points to a manageable part of the script.
Which SQL dialects does the formatter support?
The interface supports Standard SQL, PostgreSQL, MySQL, SQLite, SQL Server T-SQL, BigQuery and Snowflake. Choose the closest target before formatting because quoting rules, operators and reserved keywords differ. Stored procedures and custom delimiter directives may need a database-specific editor.
Does formatting change what a query does?
The formatter changes whitespace and, if requested, recognized keyword casing. It preserves identifiers, values and comments, but you should still review generated output before running a production query. Formatting does not execute SQL, resolve names or prove that the statement is safe.
Why does valid SQL show a parse error?
The most common cause is a dialect mismatch. Switch from Standard SQL to the database that will execute the query. Vendor-specific stored procedure syntax, template placeholders or delimiter commands can also fall outside the formatter grammar even when your database accepts them.
Should SQL keywords be uppercase or lowercase?
Either style can be consistent and readable because most SQL dialects treat unquoted keywords case-insensitively. Uppercase makes clauses stand out from identifiers; lowercase can match a modern codebase. Preserve keeps the input keyword case while still applying spacing and indentation.