MD5 Hash Generator

Your input "monkey" is frequently used as a password.

MD5 is not cryptographically secure and should never be used to store passwords!

The hash d0763edaa9d9bd2a9516280e9044d885is likely included in many rainbow tables, allowing the password "monkey" to be reversed almost instantly.

What is an MD5 Hash?

MD5 (Message-Digest Algorithm 5) is a widely used cryptographic hash function that produces a 128-bit (16-byte) hash value, often represented as a 32-character hexadecimal number. The primary purpose of an MD5 hash is to take input data of any size and convert it into a fixed-size hash value, which serves as a digital fingerprint of the data.

MD5 Hash Generator

This site lets you generate MD5 hashes instantly, entirely free and online. Simply enter your text into the input box, and the tool will create the corresponding MD5 hash. All hashing is performed locally in your browser, ensuring your input data is never transmitted to any server. The tool normalizes all line endings to \n and processes input using UTF-8 encoding.

How Does MD5 Work?

  1. Input Data: MD5 accepts input data, which can be a file, a string, or any form of binary data.
  2. Processing: The algorithm processes the input data in 512-bit chunks through several rounds of mathematical operations, including bitwise operations, modular additions, and data mixing.
  3. Output: The result is a fixed-size 128-bit hash value, regardless of the size of the input.

For a detailed explanation, see the Algorithm section on Wikipedia.

For example:

  • Input: Hello, World!
  • Output: 65a8e27d8879283831b664bd8b7f0ad4

Characteristics of MD5

  • Deterministic: The same input will always produce the same hash.
  • Fixed Output Size: The output is always 128 bits, making it predictable and uniform.
  • Fast Computation: MD5 is computationally efficient, making it suitable for many applications.
  • Non-Reversible: It is computationally infeasible to reverse-engineer the original data from the hash value.

Common Uses of MD5

  1. Checksums: MD5 is often used to verify the integrity of files by comparing the hash of the downloaded file with the provided hash.
  2. Digital Signatures: It can be used in cryptographic applications to verify the authenticity of data.
  3. Historically for Password Storage: Although outdated, MD5 was used to store hashed passwords in databases.

Security Concerns with MD5

MD5 is not considered secure for cryptographic purposes due to vulnerabilities such as collision attacks (two different inputs producing the same hash), pre-image attacks (reconstructing the original input from the hash), and susceptibility to rainbow table attacks (precomputed hash databases).

Never use MD5 hashes to store passwords!

Alternatives to MD5

Modern hash functions like SHA-256, SHA-3, and Argon2 offer greater security and are recommended for use in cryptographic systems.