SQL 포맷터
SQL 쿼리 포맷 및 정리
사용 방법
텍스트 붙여넣기 또는 입력
입력 영역에 텍스트, 코드 또는 데이터를 입력하세요.
옵션 선택
적용할 변환이나 포맷을 선택하세요.
결과 복사
한 번의 클릭으로 출력을 클립보드에 복사하세요.
이 도구를 사용하는 이유
100% 무료
숨겨진 비용도, 프리미엄 등급도 없습니다 — 모든 기능이 무료입니다.
설치 불필요
브라우저에서 완전히 실행됩니다. 소프트웨어를 다운로드하거나 설치할 필요가 없습니다.
프라이빗 & 안전
데이터가 기기 밖으로 나가지 않습니다. 어떤 서버에도 업로드되지 않습니다.
모바일 지원
완전 반응형 — 스마트폰, 태블릿, 데스크톱에서 사용할 수 있습니다.
SQL Formatting Best Practices for Readable Queries
Key Takeaways
- Properly formatted SQL queries are easier to review, debug, and maintain across development teams.
- Consistent SQL style reduces code review friction and helps catch logical errors in complex joins and subqueries.
- Your SQL queries are formatted entirely in the browser — no data is sent to external servers.
SQL remains the backbone of data operations for relational databases worldwide. As queries grow in complexity with multiple joins, subqueries, and conditional logic, proper formatting becomes essential for maintainability. Automated SQL formatting ensures consistent style across teams and makes complex queries immediately understandable.
Complex SQL queries with poor formatting take up to 3x longer to debug than well-formatted equivalents.
Developer Productivity
Common Use Cases
Code Review Preparation
Format SQL queries before submitting pull requests to ensure reviewers can quickly understand query logic and join conditions.
Legacy Query Cleanup
Reformat inherited SQL code from legacy systems where inconsistent formatting makes understanding query intent difficult.
Log Analysis
Format SQL queries extracted from application logs or slow query reports to analyze performance bottlenecks.
Documentation Generation
Produce cleanly formatted SQL examples for technical documentation, wiki pages, and team onboarding materials.
Pro Tips
Place each major clause (SELECT, FROM, WHERE, JOIN, ORDER BY) on its own line for maximum readability.
Use uppercase for SQL keywords and lowercase for column and table names to visually distinguish syntax from data.
Indent subqueries and CASE expressions to clearly show nesting levels and logical grouping.
Add line breaks after commas in SELECT lists when you have more than three columns to keep lines manageable.
All SQL formatting is performed entirely in your browser. Your queries, which may contain sensitive table names, column references, or business logic, are never transmitted to any external server.