Hash Generator
Type or paste text and get its MD5, SHA-1, SHA-256, and SHA-512 hashes, all at once.
Which hash to use
MD5 and SHA-1 are fast but no longer considered secure against deliberate collision attacks — fine for checksums, not for passwords or security-sensitive signatures. SHA-256 and SHA-512 are the current standard for integrity checks and cryptographic use.
About the Hash Generator
The Hash Generator produces MD5, SHA-1, SHA-256 and SHA-512 hashes of any text you type. A hash is a fixed-length fingerprint of data: the same input always gives the same hash, and even a one-character change produces a completely different result. Developers use hashes to verify file integrity, compare values without storing them, and build checksums.
SHA-256 and SHA-512 belong to the SHA-2 family and are considered secure for integrity checks. MD5 and SHA-1 are older and have known collision weaknesses, so they should not be used for security purposes, though they remain common for non-security checksums and legacy systems. Hashing is one-way: you cannot recover the original text from the hash. Passwords should be stored with a slow, salted algorithm such as bcrypt, scrypt or Argon2 rather than a plain fast hash.
How to use it
- Type or paste your text into the Text box.
- The hashes are calculated in your browser.
- Copy the algorithm you need.
- Compare the result with a published checksum if you are verifying data.
Tips and good to know
- Trailing spaces and line breaks change the hash, so paste exactly the text you mean.
- Hashes are case sensitive in the input but usually written in lowercase hexadecimal.
- To verify a downloaded file, use a file-hashing utility on the file itself.
Frequently asked questions
Can a hash be reversed?
Not directly; attackers guess inputs, which is why strong passwords and salting matter.
Which algorithm should I choose?
SHA-256 is a good general choice.
Is my text sent anywhere?
No, hashing uses your browser's own functions.