Hash Generator
Generate SHA-1, SHA-256, and SHA-512 hashes from any text using the Web Crypto API. All processing happens in your browser.
How to Generate Hashes
- 1
Enter Text
Type or paste the text you want to hash.
- 2
View Hash Results
See MD5, SHA-1, SHA-256, and SHA-512 hashes generated simultaneously.
- 3
Copy Hash
Click any hash value to copy it to your clipboard.
- 4
Compare Hashes
Use hashes to verify file integrity or compare data.
About Cryptographic Hashes
Cryptographic hash functions convert input data into a fixed-length string of characters. Each unique input produces a unique hash — even a single character change creates a completely different output.
MD5 produces 128-bit hashes and is fast but considered cryptographically broken for security purposes. SHA-1 (160-bit) is also deprecated for security. SHA-256 and SHA-512 are part of the SHA-2 family and remain secure for all applications.
This tool generates multiple hash types simultaneously using the Web Crypto API built into your browser. Your input text never leaves your device, making it safe for hashing sensitive data like passwords or API keys.
Key Features
Common Use Cases
- •Generate SHA-256 checksums for file integrity verification
- •Create password hashes for testing authentication systems
- •Compare document hashes to detect modifications
- •Generate unique identifiers from text strings
- •Verify download integrity by comparing hash values
Frequently Asked Questions
Which hash algorithm should I use?
For security purposes, use SHA-256 or SHA-512. MD5 and SHA-1 are considered broken for cryptographic security but remain useful for checksums and non-security applications.
Can I reverse a hash to get the original text?
No. Hash functions are one-way — you cannot reverse a hash to recover the original input. This is by design and is what makes hashes useful for password storage.
Why do MD5 and SHA-1 show as insecure?
Collision attacks have been demonstrated for both MD5 and SHA-1, meaning different inputs can produce the same hash. This makes them unsuitable for security-critical applications.
Is this tool safe for hashing passwords?
The hashing happens entirely in your browser, so your input is never transmitted. However, for production password storage, use dedicated password hashing algorithms like bcrypt or Argon2, not raw SHA.