Practical example
Format an UPDATE and verify its WHERE clause before execution; improved indentation makes a missing condition easier to spot but cannot make the query safe.
SQL Formatter
Paste an SQL query and instantly format, minify, normalize keywords, and improve readability directly in your browser.
Formatting options
Actions
What is an SQL formatter?
An SQL formatter makes SQL queries easier to read by adding indentation, line breaks, and consistent keyword styling.
It is useful for debugging queries, reviewing joins and filters, sharing SQL in tickets or pull requests, and cleaning up copied database statements.
How to use the SQL Formatter
- Paste your SQL query into the input field.
- Choose formatting options such as uppercase keywords, comma line breaks, and indentation size.
- Click Format to beautify the query or Minify to compress it.
- Copy the output and use it in your editor, docs, or database tool.
Tips
- Formatting does not change the logic of your SQL query.
- Uppercase keywords make long queries easier to scan.
- Breaking lines on commas helps with SELECT, GROUP BY, and ORDER BY lists.
- Minified SQL is useful when you need compact one-line output.
SQL formatting checks before sharing or reviewing queries
Formatting SQL improves readability, but query behavior depends on dialect, parameters, comments, and execution context.
Know the dialect
Check whether the query targets PostgreSQL, MySQL, SQLite, SQL Server, or another dialect before relying on formatting.
Preserve parameters
Keep placeholders, bind variables, template tags, and comments intact when formatting queries from application code.
Review risky clauses
Inspect WHERE, JOIN, GROUP BY, ORDER BY, LIMIT, UPDATE, and DELETE clauses before running copied SQL.
Do not expose data
Remove credentials, tokens, emails, and customer data before sharing formatted SQL in tickets or documentation.
A practical example, an edge case, and a maintainer note
Edge case
PostgreSQL dollar quotes, MySQL delimiters, SQL Server brackets, and template placeholders can confuse a formatter built for another dialect.
Maintainer note
I format copied SQL for review, then run EXPLAIN or a transaction in the target database before trusting performance or effects.
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SQL Formatter FAQ
Is my SQL sent to the server?
No. Your SQL is formatted by a JavaScript parser in the browser, so queries that reveal schema details or contain literal values never leave your machine.
Can this tool format long SELECT queries with JOINs?
Yes. It is especially useful for long SELECT statements with multiple JOIN, WHERE, GROUP BY, and ORDER BY clauses.
Does formatting validate SQL syntax?
No. It improves layout and readability, but it is not a full SQL parser or validator.