RubanTools

SQL Formatter & Beautifier

Paste messy SQL and get it properly indented and formatted - works with SELECT, INSERT, UPDATE, DELETE, CREATE TABLE and complex joins.

Input SQL
Formatted SQL

SQL Formatting FAQ

Formatted SQL is dramatically easier to read, debug, and review. Database performance is unaffected - query optimizers ignore formatting. Consistent formatting also makes version control diffs cleaner and helps teams maintain style conventions. Always format SQL before committing to a codebase or documentation.

SQL keywords are case-insensitive - select and SELECT are equivalent. The convention to uppercase keywords dates from early DBMS environments with limited syntax highlighting. Modern IDEs highlight keywords regardless of case, so lowercase is increasingly common. Pick one style and be consistent across your team.

SQL minification removes all unnecessary whitespace to produce a single-line query. This is useful when embedding SQL in JSON configurations, environment variables, or log messages where line breaks cause issues. The query runs identically - whitespace is irrelevant to SQL parsing (except inside string literals).