Hash "Hello, world!"
text = Hello, world!
Result: Enter text and click Hash to see the MD5 digest.
MD5 Hash Generator
Convert text to its MD5 hash (digest) using the Web Crypto API. The output is a hexadecimal string representing the hash value. MD5 is provided for educational reference and legacy compatibility - it is NOT secure for modern applications. Everything runs in your browser.
Privacy: this tool processes your data entirely in your browser. Nothing you paste or type is sent to the server.
Enter your values and press Calculate — the result appears here.
Worked examples
Frequently asked questions
What is MD5?
MD5 is a cryptographic hash function that produces a fixed-size digest from arbitrary input. However, MD5 is considered cryptographically broken and should not be used for security purposes.
Is hashing the same as encryption?
No. Hashing is a one-way operation - you cannot recover the original input from the hash. Encryption is reversible with the correct key. Hashing is used for integrity checks and password storage, while encryption is used for confidentiality.
Can two different inputs produce the same hash?
Technically yes (a "collision"), but for modern algorithms like SHA-256, finding collisions is computationally infeasible. MD5 collisions, however, have been demonstrated practically.
Is my text sent to a server?
No. Hashing happens entirely in your browser using the Web Crypto API. Nothing you type is transmitted anywhere.
Should I use MD5 for password hashing?
Absolutely not. MD5 is too fast for password hashing and has known vulnerabilities. Use Argon2id, bcrypt, or scrypt instead - see the Password Hasher tool.
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