SHA-256 생성기 — 무료 온라인 도구
Web Crypto API를 사용하여 모든 텍스트로부터 SHA-256 해시를 생성합니다.
- 브라우저에서 실행
- 즉시 결과 확인
- 100% 비공개
What Is a SHA-256 Hash?
SHA-256 is a cryptographic hash function that converts any input text into a fixed 64-character hexadecimal string (256 bits). It is part of the SHA-2 family and is currently the most widely used general-purpose secure hash algorithm, used in TLS certificates, blockchain systems, and secure checksums.
Like all hash functions, SHA-256 is deterministic (the same input always produces the same output) and collision-resistant in practice, meaning it is currently computationally infeasible to find two different inputs that produce the same hash.
누가 이 도구를 사용하나요?
비즈니스용
Generate a secure checksum to verify data integrity.
개인 사용
Check whether a downloaded file or piece of text matches a published hash.
학생용
Learn how SHA-256 works for a security or cryptography course.
사무실용
Generate a secure reference hash for an internal document or record.
주요 기능
Web Crypto API
Uses your browser's native, audited SHA-256 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
Industry-Standard Security
SHA-256 is currently considered secure for integrity and verification purposes.
No Software Needed
Generate a secure hash without a command line or programming language.
Completely Private
Sensitive text is never sent to a server, since hashing happens locally.
SHA-256 생성기 사용 방법
Type or Paste Text
Add the text you want to hash.
Read the Generated Hash
The SHA-256 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-256 (FIPS 180-4), producing a 256-bit (64 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
Use This to Verify Downloads
Compare a file's published SHA-256 hash against one you compute yourself to confirm it hasn't been tampered with.
Prefer SHA-256 Over MD5/SHA-1
For anything security-related, SHA-256 is the safer default choice.