Convert text into MD5 hashes instantly — secure, fast, and runs locally
An MD5 hash is a 128-bit cryptographic hash function that converts any input into a fixed 32-character hexadecimal string. MD5 was designed by Ronald Rivest in 1991 and became widely used for checksums and digital signatures. The algorithm is deterministic, meaning the same input always produces the same hash. However, MD5 is considered cryptographically broken and should no longer be used for further authenticating cryptographic purposes.
While not secure for passwords, MD5 still has legitimate uses: verifying file integrity during downloads, creating checksums for data transmission, and non-security-critical applications. Some legacy systems still use MD5, though modern alternatives like SHA256 are preferred. MD5 is fast to compute, which made it popular historically, but this speed comes at the cost of security. Collisions (two different inputs producing the same hash) have been found, making it unsuitable for security applications.
In 2004, cryptanalysts demonstrated that MD5 was vulnerable to collision attacks. By 2008, practical collision attacks were published, showing that MD5 could not guarantee the integrity of data. Modern security standards recommend using SHA256, SHA3, or other secure hashing algorithms instead. For password storage, never use MD5 directly—use bcrypt, Argon2, or PBKDF2 with salt.
Simply enter your text into the input field and click "Generate MD5". The hash will appear instantly in the output box. You can copy the hash with a single click. All processing happens locally in your browser—nothing is sent to any server. This tool is perfect for educational purposes, verifying checksums, or understanding how hash functions work. For stronger hashing, consider using our SHA256 Hash Generator instead.
For more secure alternatives, try our SHA256 Hash Generator for modern security standards. You can also use our Base64 Encoder/Decoder for text encoding, Text Hexadecimal Converter, or Text Binary Converter for various encoding formats.
No, MD5 is a one-way function. Once data is hashed, you cannot retrieve the original input. However, rainbow tables (pre-computed hash databases) can sometimes crack simple MD5 hashes.
Yes. All hashing is done locally in your browser using JavaScript. Your input is never sent to any server, ensuring complete privacy.
MD5 is deterministic—it follows a fixed algorithm. This makes it useful for checksums but also predictable, which is a security weakness. Modern alternatives add randomization through salting.