MD5 Hash Generator

Generate an MD5 checksum — for integrity, never for security.

MD5 Generator

Developer tool running locally in browser

Input

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What does MD5 Generator do?

Produce a 128-bit MD5 hash from text. MD5 is cryptographically broken and must not be used for passwords or signatures, but it remains widely used as a fast non-security checksum for cache keys, deduplication and legacy integrations.

How to Use MD5 Generator

1
Enter your textThe hash appears as you type.
2
Copy the hashChoose upper or lower case.
3
Verify if neededPaste an expected checksum to compare.

Key Features

RFC 1321 compliant MD5 implementation running in your browser
Uppercase and lowercase hex output
16-bit and 32-bit truncated variants used by some legacy systems
Comparison field for verifying a published checksum
Explicit guidance on where MD5 is and is not appropriate

Frequently Asked Questions

Is MD5 safe to use?

Not for anything security related. Collisions can be generated in seconds on ordinary hardware, so MD5 cannot prove that data has not been deliberately altered. It is still fine as a fast checksum against accidental corruption.

Why do people still use MD5?

Speed and inertia. It is the fastest widely available hash and remains embedded in cache keys, ETag generation, file deduplication and countless legacy systems where the security properties were never relevant.

Can MD5 be decrypted?

No, it is one-way. Lookup services appear to reverse it because they store precomputed hashes of common inputs — that is a dictionary lookup, not decryption.

What should I use instead?

SHA-256 for integrity and signatures. For passwords, bcrypt, scrypt or Argon2. If you only need a fast non-cryptographic checksum, CRC-32 is smaller and faster still.

100% Data Privacy

The MD5 implementation runs in your browser. Nothing you enter is transmitted or stored.