MD5 Hash Calculator — Online codecs

Calculate an MD5 hash

Calculate a 32-character hexadecimal MD5 digest of text to compare content or create short identifiers. MD5 is unsuitable for password storage or security-sensitive integrity checks.

Input text

MD5 digest

MD5 is a one-way digest. The result here uses 32 lowercase hexadecimal characters.

Worked example

The MD5 of hello (lowercase, no newline) is 5d41402abc4b2a76b9719d911017c592. Hello (capital H) gives 8b1a9953c4611296a827abf8c47804d7. Use these values to check for extra spaces or line breaks when copying.

Understanding settings and results

The digest is sensitive to capitalization, spaces and line breaks.
MD5 computes a one-way digest; it cannot restore the original text from the digest.

Scope and limitations

MD5 has collisions and should not be used for digital signatures, certificates or password databases.
Match character encoding and line endings before comparing across systems.

Troubleshooting

For mismatches, check leading/trailing spaces and CRLF/LF line endings.
Use dedicated password schemes such as Argon2, scrypt or bcrypt for passwords.

Privacy and processing

A local browser script calculates the digest; text is not uploaded.