Tidy messy SQL

One-line SQL pasted from a log becomes readable: keywords uppercased, clauses on their own lines, consistent indent.

Tools used in this guide

SQL formatter

The job

Queries arrive minified in logs and stack traces. Reformatting makes the structure visible — which JOIN, which WHERE — before you debug or hand it to review.

Format

Paste SQL, pick keyword case and indent width, format or minify. Comments and string literals pass through untouched; the output is the same query with line breaks.

Major clauses (SELECT/FROM/WHERE/GROUP BY/ORDER BY/JOIN…) each get their own line.
Minify does the reverse — useful when pasting back into a one-line field.

Worked example

"select u.id, o.total from users u join orders o on o.user_id=u.id where o.total>100" becomes five readable lines — the join condition is suddenly visible.

Where it stops

Cosmetic only — it re-breaks and re-cases text; it does not parse, validate, or optimize. Dialect-specific syntax (hints, LATERAL, arrays) is preserved literally, not understood. Input capped at 512 KB.