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MD5 Hash Generator

Free online MD5 hash generator. Compute the MD5 checksum of any text instantly in your browser — useful for checksums and legacy system compatibility. Nothing is uploaded.

md5.run

What is MD5 and is it still safe?

MD5 is a hash function from 1992 that turns any input into a fixed 128-bit fingerprint (32 hex characters). The same input always yields the same hash, and any tiny change produces a completely different one — which made it popular for file checksums and integrity checks.

Cryptographically, MD5 is broken: collisions (two inputs with the same hash) can be manufactured in seconds, so it must never be used for passwords, signatures or security. It survives legitimately in non-security roles — cache keys, deduplication, checksums against accidental corruption, and legacy system compatibility.

How to use

  1. 01Type or paste the text you want to hash.
  2. 02Click Generate MD5.
  3. 03Toggle UPPERCASE if you need capital hex digits.
  4. 04Copy the 32-character MD5 checksum.

Frequently asked questions

Is MD5 safe for passwords?
No. MD5 is cryptographically broken and should never be used for password storage or security purposes. It remains useful for non-security checksums and legacy system compatibility.
Why is the MD5 hash always 32 characters?
MD5 always produces a 128-bit digest, which is written as 32 hexadecimal characters regardless of input size.
Is my text sent to a server to be hashed?
No. The MD5 algorithm runs as JavaScript in your browser — your input never leaves your device.

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