MD5 Hash Generator

MD5 Hash:

MD5 Hash Generator (Free Online Tool)

Generate 128-bit MD5 hashes from any string in seconds. Copy the result for use in MySQL, PostgreSQL, logs, or file integrity checks. Developers working in PHP, Python, JavaScript, ASP.NET, and SQL will find this tool handy for quick hashing and checksum workflows.

What is an MD5 hash?

MD5 converts input of any length into a fixed 128-bit fingerprint (32 hex characters). The same input always produces the same hash, which makes MD5 useful for:

File integrity checks and checksums
De-duplication and quick lookups
Non-cryptographic fingerprints in caching or partitioning

Important: MD5 is not encryption and should not be used to store passwords or protect sensitive data. It’s a one-way function and is vulnerable to collisions. For passwords use Argon2, bcrypt, or at least PBKDF2/SHA-256 with a salt and proper parameters.

How it works

Type or paste a string (up to 256 characters).
Click Generate MD5.
Copy the 32-character hexadecimal hash.

Features

Instant hashing in the browser
Uppercase/lowercase output toggle
Copy-to-clipboard
Optional input length counter
Works offline once loaded

Common uses

Compare source and destination file checksums to verify integrity
Create non-reversible identifiers for non-sensitive values
Quick consistency checks in ETL/data pipelines

SQL (checksums)

Compute hashes in app code; store the 32-char hex in a CHAR(32) column for MySQL/PostgreSQL.

Security notes (read first)

Don’t use MD5 for passwords, credit card numbers, or any security-sensitive information.
Prefer Argon2 or bcrypt (with salts and proper cost parameters) for passwords.
For general cryptographic hashing and signatures, use SHA-256/512 with HMAC.