Generate MD5 hashes for text or files instantly. 100% client-side — your data never leaves your device. Supports uppercase/lowercase output and per-line hashing.
MD5 (Message-Digest Algorithm 5) is a widely used cryptographic hash function that produces a 128-bit (16-byte) hash value, typically expressed as a 32-digit hexadecimal number. It was designed by Ronald Rivest in 1991 and has been commonly used for checksums, digital signatures, and data integrity verification. While MD5 is no longer considered cryptographically secure for password storage due to known collision vulnerabilities, it remains widely used for file integrity verification, checksums, and legacy compatibility. This tool computes MD5 hashes entirely in your browser — no data is ever sent to a server.
MD5 (Message-Digest Algorithm 5) is a cryptographic hash function that takes an input and returns a 128-bit hash value, typically represented as a 32-character hexadecimal string. It was widely used for checksums and data integrity verification.
MD5 is no longer considered cryptographically secure due to known collision vulnerabilities discovered by researchers. It should not be used for password storage or digital signatures. However, it remains useful for file integrity checks, legacy compatibility, and non-security-critical checksums.
Yes. Files are read locally in your browser using the FileReader API. There is no file size limit imposed by this tool — only your browser's memory capacity.
MD5 hashes consist of hexadecimal digits (0-9 and a-f or A-F). Uppercase and lowercase representations contain the exact same values — "a" equals "A", "b" equals "B", etc. The choice is purely cosmetic and depends on your preference or the requirements of the system you're working with.