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SQL Keyword Line-Breaker

Split dense one-line SQL into one clause per line with uppercase keywords — a readability pass, not a full syntax formatter.

Formatting That Improves Reviews, Not Just Looks

Breaking keywords onto their own lines turns SQL review into a checklist: SELECT list, FROM source, JOIN conditions, WHERE filters — each becomes a scannable block, and a missing join condition or a comma error stops hiding inside a 300-character line. Uppercasing keywords is more than cosmetics: it separates logic from identifiers at a glance. One caution: formatting never changes semantics, but reformatting inside string literals or comments would — a formatter that touches quoted content is buggy.

A Readability Pass, Not a Parser

Putting each clause (SELECT, FROM, WHERE, GROUP BY, ORDER BY) on its own line and uppercasing the keywords makes a long query much easier to review. Review is where most SQL mistakes are caught, such as a missing join condition or an OR that needs brackets.

This tool works on keywords and does not understand every dialect, so very complex statements, procedural code and vendor-specific syntax may need manual tidying. Formatting never changes what the query does, but always run a changed query against test data before using it in production.

How the Tool Works

  1. Paste your SQL statement, whether single-line or inconsistently indented.
  2. The tool inserts a line break before each major clause keyword and uppercases the keywords.
  3. It is intentionally lightweight: it does not parse your schema or re-indent subqueries like a full IDE formatter.
  4. Copy the output for documentation, logs, or code review.

Example Input & Output

Format a denormalized query
Input: SELECT u.id,u.name,COUNT(o.id) FROM users u LEFT JOIN orders o ON o.user_id=u.id GROUP BY u.id,u.name HAVING COUNT(o.id)>5
Output: One clause per line: SELECT / FROM / LEFT JOIN / GROUP BY / HAVING
Breaking a query at clause boundaries makes the JOIN chain and grouping logic readable enough to audit in seconds.
Prepare a query for review
Input: UPDATE accounts SET balance=balance-10 WHERE id=7
Output: UPDATE / SET / WHERE on separate lines, keywords uppercased
Consistent formatting is the baseline for any pull request that touches SQL.

Common Questions

Is this a full SQL formatter?

No — and the name says so. It breaks queries at major clause boundaries and uppercases keywords. It does not re-indent subqueries, align commas, or validate syntax. For deep formatting, use your IDE’s SQL formatter; for quick readability of a pasted one-liner, this is faster.

Which keywords trigger a line break?

SELECT, FROM, WHERE, GROUP BY, ORDER BY, HAVING, LIMIT, and the JOIN variants. Anything inside parentheses or string literals is left untouched.

Is my query sent anywhere?

No. Formatting happens locally, so internal schemas and table names never leave your browser.

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