Free Developer Tool
Generate secure MD5, SHA-256, and SHA-512 hashes instantly to verify data integrity.
Input Text
How It Works
Enter any string — a password, a filename, a document content, whatever needs hashing. Hashing is one-way, so you can't reverse it.
MD5, SHA-1, SHA-256, and SHA-512 are all generated simultaneously. No need to generate them one at a time.
Click Copy next to any hash. SHA-256 is the recommended choice for modern applications.
To verify a download, generate the hash of your file's contents and compare it to the publisher's posted hash. If they match, the file is intact.
FAQ
MD5 produces a 128-bit hash and is fast, but is cryptographically broken — it's vulnerable to collision attacks. SHA-256 is part of the SHA-2 family, producing a 256-bit hash, and is considered secure for most modern use cases.
No — MD5, SHA-1, and even SHA-256 are too fast for password hashing, which makes them vulnerable to brute-force attacks. For passwords, use bcrypt, Argon2, or PBKDF2, which are designed to be intentionally slow.
That's the deterministic property of hash functions. The same input always produces the same output. Change even one character, and the hash changes completely — this is called the avalanche effect.