MD4 Hash Generator
Calculate MD4 hash for text. Free, fast, and secure MD4 hash generator. 100% client-side, no data uploaded to server.
What is MD4?
MD4 is a cryptographic hash function that produces a fixed-size hash value from variable-length input data. It's part of the MD (Message Digest) family and produces a 128-bit hash value. Originally designed for digital signature applications.
How to Use MD4
1. Enter or paste your text into the input field. 2. The MD4 hash is calculated instantly as you type. 3. Click "Copy" to copy the hash value to your clipboard. 4. Use the "Clear" button to reset and start over.
When to Use MD4
Use MD4 only for legacy system compatibility or non-security purposes. For security applications, always use modern alternatives like SHA-256 or SHA-3.
How MD4 Works
MD4 processes data in 512-bit blocks through a series of rounds with different shift amounts and constants, producing a 128-bit output.
Common Use Cases
- Legacy system compatibility
- Non-security checksums
- Educational purposes
Security Note
⚠️ MD4 is cryptographically broken and should NOT be used for security purposes. Use SHA-256 or SHA-3 instead.
FAQs
1 What is MD4 used for?
MD4 is used for legacy system compatibility, non-security checksums, educational purposes, and more.
2 Is MD4 secure?
No, MD4 is no longer considered secure. Use SHA-256 or SHA-3 for security applications.