Generate MD4 hashes for legacy systems and compatibility purposes. Vulnerable to cryptographic attacks.
Supported Tools:
Free online tool to create and verify MD4 hashes from text or files directly in your browser. No installation required.
MD4 (Message-Digest Algorithm 4) is a cryptographic hash function developed by Ronald Rivest in 1990. It produces a 128-bit (16-byte) hash represented as a 32-character hexadecimal string. Although widely used in older protocols and software, MD4 is no longer secure for modern cryptography. It remains useful for legacy systems, file integrity checks, and learning about hash functions.
Input:
keydecryptor
Output:
5aacfc36bc3cadac39627b41b31fa981
Can I generate MD4 hashes for free?
Yes. This online tool lets you instantly create MD4 hashes from text or files without installing any software.
Who created MD4?
MD4 was developed by Ronald Rivest in 1990 and inspired later hash functions such as MD5.
MD4 vs MD5: which is better?
MD5 is an improved version of MD4 and generally more secure. Both are considered weak by modern standards, but MD5 fixed several vulnerabilities found in MD4, making it more suitable for file checksums and legacy applications.
Can I reverse MD4 hashes to text?
No. MD4 is a one-way hashing algorithm, so the original text cannot be recovered. Some online lookup databases may help with known hash values.
Can I calculate the MD4 hash of a file?
Yes. Upload a file, and the tool will compute its 32-character MD4 hash.