SQL Formatter
Struggling to read a one-line query from your logs or AI assistant? This free SQL formatter pretty-prints your SQL with consistent indentation and optional keyword uppercasing, then copies or downloads a .sql file — privately, in your browser.
Who is this SQL formatter for?
SQL runs from a tiny script to a huge data warehouse, so the people who reach for a formatter come from every side of a query.
- Developers: tidy one-line queries pulled from logs, IDE consoles or an AI assistant before you paste them into code.
- Data analysts: make long SELECT and JOIN statements readable before you review, document or share them.
- Students and learners: study how a query is structured by seeing each clause on its own line.
- Database administrators: format stored statements, migration scripts and ad-hoc queries to a consistent house style.
What is a SQL formatter?
A SQL formatter (also called a SQL beautifier or pretty printer) takes a string of Structured Query Language and reformats it so it is easy to read and maintain — adding consistent indentation, breaking one long query into multiple lines, aligning the major clauses and optionally capitalising keywords. It never changes your logic, column names or literals; it only adds whitespace so the same query is far more legible.
A single-line query such as select id,name from users where age>18 and status='active' is hard to scan. Once formatted, each clause sits on its own line, the columns stack one per row at a consistent indent, and the conditions line up, so you see exactly what the query does at a glance.
Developers, analysts, DBAs and students use it constantly — to tidy a logged query, review AI-generated SQL, prepare statements for a report, and keep documentation snippets clean. Everything runs locally, so no SQL is ever uploaded.
How to use the SQL Formatter
- Paste your SQL into the SQL input box.
- Choose a keyword case: UPPERCASE, lowercase, or keep as written.
- Pick an indent size: 2 spaces or 4 spaces.
- Click Format SQL to pretty-print the query.
- Read the output, then Copy it or click Download .sql to save the file.
Example
Input: select id, name from users where age > 18 and status = "active" order by id desc;
Format with UPPERCASE keywords and 2-space indentation →
SELECT id, name FROM users WHERE age > 18 AND status = "active" ORDER BY id DESC;
Common Use Cases
- Tidying a one-line query copied from an application log or IDE console.
- Reviewing SQL generated by an AI assistant or a query builder before running it.
- Preparing readable SELECT, INSERT, UPDATE and DELETE statements for documentation or reports.
- Debugging a long WHERE clause with many AND / OR conditions.
Pro Tips
- Pair UPPERCASE keywords with a 2-space indent for the most common query style.
- Use Keep as written if your source already uses a casing you want to preserve.
- Format before pasting into a README or pull request so reviewers can scan the query quickly, and use one clause per line to debug long queries faster.
FAQ
What is a SQL formatter?
A SQL formatter, also called a SQL beautifier or pretty printer, takes a SQL string and reformats it with consistent indentation and line breaks so it is easier to read, without changing the logic.
Does it upload my SQL anywhere?
No. Formatting runs entirely in your browser, so your SQL never leaves your device.
How do I download the formatted SQL?
Click the Download .sql button and the formatted query is saved as a .sql file using the same file name for every export.
What does the keyword case option do?
It sets whether SQL keywords are uppercased, lowercased or kept exactly as written. Column and table names are never changed.
Can it format INSERT, UPDATE and DELETE statements?
Yes. The formatter handles SELECT, INSERT, UPDATE and DELETE statements and places each major clause on its own line with clean indentation.
Does formatting change my query's logic?
No. Only whitespace is added; every keyword, table, column and literal is preserved exactly. The query runs exactly the same before and after.
Does it work on a single-line query?
Yes — that is the main use case. Paste a one-line query and it is split onto multiple lines with each clause aligned.
Is it free?
Yes, it is free and unlimited, with no signup required.
Does it handle complex queries?
It handles a single statement and simple nested subqueries well. For very large or multi-statement scripts, review the output.
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