JSON 포매터
JSON 및 데이터 형식 · 무료 온라인 도구
JSON 형식 지정, 검증 및 압축.
Click "Format" to beautify your JSON...미화
지저분한 JSON을 선호하는 들여쓰기 크기로 읽기 쉬운 구조로 포맷합니다.
미니파이
공백을 제거하여 JSON 압축 — 프로덕션 페이로드에 완벽합니다.
검증
JSON이 유효한지 확인하고 위치 힌트와 함께 명확한 오류 메시지를 받습니다.
JSON 포매터 사용 방법
- 1Paste your input data (JSON, CSV, XML, YAML, etc.) into the input field.
- 2The tool automatically processes and validates your data.
- 3Review the converted output in the result panel.
- 4Copy or download the converted result.
주요 기능
- ✓100% 무료 — 가입, 구독, 광고 없음
- ✓브라우저에서만 실행 — 데이터는 기기를 떠나지 않습니다
- ✓빠르고 가벼움 — 즉시 결과 확인
- ✓크로스 플랫폼 — 데스크톱, 태블릿, 모바일 지원
JSON 포매터 소개
JSON (JavaScript Object Notation) is a lightweight data-interchange format defined by RFC 8259. It uses human-readable text to represent objects, arrays, and primitive values. A JSON Formatter beautifies minified JSON by adding indentation and line breaks, making it readable for debugging and inspection.
JSON 포매터 작동 원리
The parser tokenizes the JSON string, validates syntax according to RFC 8259, and builds an in-memory tree. The formatter then serializes the tree back to text with configurable indentation (2 or 4 spaces). Syntax errors are reported with line and column numbers.
주요 활용 사례
- ✓REST API debugging — inspect request/response payloads
- ✓Configuration files — validate and beautify JSON config
- ✓NoSQL databases — review MongoDB/CouchDB documents
- ✓Log analysis — format JSON log entries for readability
JSON vs XML
JSON is lighter and faster to parse than XML. XML supports attributes and namespaces; JSON only has objects and arrays. JSON maps directly to most programming language data structures, making it the default for modern APIs. XML remains common in enterprise/SOAP environments.
보안 및 개인정보
This tool runs entirely in your browser — your JSON data is never uploaded. Be cautious with JSON containing sensitive data (tokens, passwords). JSON itself has no security model; always use HTTPS for transport and validate input on the server.
기술 세부 정보
Standard: RFC 8259 / ECMA-404. Data types: string, number, boolean, null, array, object. Numbers are double-precision IEEE 754. Strings must be UTF-8. Keys must be double-quoted strings. Trailing commas are invalid. Comments are NOT supported (use JSONC or JSON5 for comments).
자주 묻는 질문
Why does my JSON have a trailing comma error?
RFC 8259 forbids trailing commas. Remove the comma after the last item in objects and arrays.
Can JSON contain comments?
Standard JSON (RFC 8259) does not support comments. Use JSONC or JSON5 if you need comments. Most parsers will reject comments.
What is the maximum JSON size?
The spec sets no limit, but browsers and servers impose practical limits (typically 1-100MB). Very large JSON can cause memory issues; consider streaming parsers for big data.
관련 도구
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