MD5 Online Encryptor
Generate MD5 hash values for text or files. Supports file verification, data integrity checking with multiple input/output formats
Enter plain text (UTF-8 encoded)
Result MD5
About MD5 Algorithm
MD5 (Message-Digest Algorithm 5) is a widely used cryptographic hash function that produces a 128-bit (16-byte) hash value. Designed by Ronald Rivest in 1991 to replace MD4, it was once the standard for data integrity verification and password hashing.
Although MD5 is no longer suitable for security-critical applications (such as SSL/TLS, password storage) due to collision vulnerabilities, it is still widely used for file integrity checks, checksums, and non-cryptographic identifiers.
This tool computes the hash entirely in your browser using JavaScript. Your files and text data are never uploaded to our servers, ensuring 100% privacy and security.
Key Features
Common Use Cases
FAQ
Is MD5 safe for password storage?
No. MD5 is extremely fast, making it easy for attackers to crack passwords using brute force or rainbow tables. For password storage, use modern hash algorithms like Argon2, Bcrypt, or PBKDF2.
Can I decrypt an MD5 hash?
No, MD5 is a one-way function. You cannot mathematically reverse it to get the original data. However, for simple passwords, attackers can look up the hash in pre-computed databases (rainbow tables) to find a match.
Why do download sites still use MD5?
MD5 is still excellent at detecting accidental corruption (like incomplete downloads or disk errors). It is faster than SHA-256 and ubiquitous, making it sufficient for non-malicious integrity checks.
Does changing one character change the hash?
Yes. This is called the 'avalanche effect'. A tiny change in input results in a completely different output hash, which is why it's great for integrity checks.
What is the length of an MD5 hash?
MD5 generates a 128-bit (16-byte) hash. In hexadecimal representation, it is 32 characters long; in Base64, it is 24 characters (including padding).