哈希生成器
在线哈希生成器，支持 MD5、SHA-1、SHA-256、SHA-512，浏览器本地计算，安全快速。
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相关关键词
How to Use Hash Generator
Cryptographic hash functions convert input data of any size into a fixed-length string of characters called a hash or digest. Hash values are used to verify data integrity, store passwords securely, detect duplicate files, and generate digital fingerprints for documents. Our Hash Generator computes MD5, SHA-1, SHA-256, and SHA-512 hashes for any text input simultaneously. SHA-256 and SHA-512 are computed using the browser's built-in Web Crypto API, while MD5 uses a pure JavaScript implementation since it is not natively supported by modern browsers. All computation happens locally — no data is ever sent to a server. This tool is ideal for developers, security professionals, and anyone needing to verify checksums.
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Enter your text
Type or paste the text you want to hash into the input field.
- 2
Generate hashes
Click 'Generate Hashes' to compute all four hash values simultaneously.
- 3
Copy any hash
Click the 'Copy' button next to any algorithm to copy that specific hash to your clipboard.
Frequently Asked Questions
What is the difference between MD5, SHA-1, SHA-256, and SHA-512?
MD5 produces a 128-bit hash and is considered cryptographically broken for security use. SHA-1 (160 bits) is also deprecated for security. SHA-256 and SHA-512 are current standards recommended for most security applications.
Can I reverse a hash to get the original text?
No. Hash functions are one-way: you cannot mathematically reverse a hash to recover the original input. This property is fundamental to their security.
Why should I not use MD5 for passwords?
MD5 hashes can be cracked using rainbow tables and GPU-accelerated brute force. For passwords, use dedicated functions like bcrypt, scrypt, or Argon2 instead.