SHA-1 생성기 — 무료 온라인 도구
Web Crypto API를 사용하여 모든 텍스트로부터 SHA-1 해시를 생성합니다.
- 브라우저에서 실행
- 즉시 결과 확인
- 100% 비공개
What Is a SHA-1 Hash?
SHA-1 is a cryptographic hash function that converts any input text into a fixed 40-character hexadecimal string (160 bits). Like other hash functions, the same input always produces the same output, and any change to the input changes the hash completely.
SHA-1 was widely used for digital signatures and certificates but is now considered weak against determined attackers and has been phased out in favor of SHA-256 for security-sensitive uses — it still remains common for non-security checksums and version-control systems like Git.
누가 이 도구를 사용하나요?
비즈니스용
Generate a checksum to verify data integrity in a non-security context.
개인 사용
Check whether two pieces of text are exactly identical.
학생용
Learn how the SHA family of hash functions works for a security course.
사무실용
Generate a quick reference hash for a text value or document version.
주요 기능
Web Crypto API
Uses your browser's native, audited SHA-1 implementation.
100% Private
Your text is hashed entirely in your browser — nothing is uploaded.
Uppercase Option
Toggle between lowercase and uppercase hex output.
One-Click Copy
Copy the resulting hash straight to your clipboard.
이점
Fast, Native Hashing
Uses the browser's built-in Web Crypto API for speed and accuracy.
No Software Needed
Generate a hash without a command line or programming language.
Completely Private
Sensitive text is never sent to a server, since hashing happens locally.
SHA-1 생성기 사용 방법
Type or Paste Text
Add the text you want to hash.
Read the Generated Hash
The SHA-1 hash appears automatically below.
Copy the Hash
Use the Copy button to grab the result.
기술 세부 정보
| 항목 | 값 |
|---|---|
| 입력 | Plain text, encoded as UTF-8 before hashing |
| 처리 | No practical limit — handled entirely by your browser |
| 출력 | Standard SHA-1 (FIPS 180-4), producing a 160-bit (40 hex character) hash |
개인정보 보호 및 보안
이 도구를 사용할 때 파일에 실제로 어떤 일이 일어나는지 알아보세요.
100% Client-Side
This tool runs entirely inside your browser using JavaScript — nothing you type or generate is ever sent anywhere.
No Upload, Ever
There is no file upload and no server processing step — your data never leaves your device.
Works Offline
Once this page has loaded, the tool keeps working even without an internet connection.
Nothing Stored
Nothing you enter is saved on our servers — refreshing the page clears everything.
No Tracking of Your Input
We have no way to see what you type, generate or convert with this tool.
팁
Avoid SHA-1 for New Security Systems
For new security-sensitive work, prefer SHA-256 or SHA-512 instead.
Use It to Match Git Commit Hashes
Git historically uses SHA-1 for commit identifiers, which this tool can help you understand.