MD5 turns any input into a fixed 32-character hexadecimal string. The same input always produces the same hash, which makes it handy for quick comparisons.
MD5 is fast and widely supported, but it's no longer considered secure. Never use it to store passwords; use a modern algorithm like bcrypt or Argon2 instead. It's still fine for non-security tasks like cache keys and checking whether two values match.
Free Micro Apps is a Justin Zwick project. See all projects. Last updated .
