What is SHA-256?
SHA-256 is a cryptographic hash function that turns any text into a fixed 64-character string. It is the workhorse of modern integrity checking, used in password systems, file verification and SSL certificates.
This tool hashes instantly using your browseru2019s built-in crypto engine. There is no server involved, so your text stays private.
How to use this tool
- Type or paste your text.
- Click Generate SHA-256.
- Copy the 64-character hash.
Where SHA-256 is used
- Password hashing in modern applications.
- Verifying file integrity during downloads.
- Building checksums for databases and caches.
Why it matters
A single hash lets you confirm that data has not been changed. Send the hash alongside your file, and anyone can check it matches. That simple check powers downloads, backups and secure systems across the web.
Frequently Asked Questions
SHA-256 is a cryptographic hash algorithm that turns any text into a fixed 64-character string. It is the modern standard for checksums and password hashing.
Yes. It is widely considered secure for everyday use and is the algorithm behind many password systems and SSL certificates. It is a strong choice for integrity checks.
SHA-256 produces a 256-bit result, and 256 bits in hex is always 64 characters regardless of the input length.
No. Hashing is one-way. You cannot recover the original text, only compare two hashes to see if their inputs matched.
SHA-256 produces a longer, far stronger hash. Where MD5 is easy to crack, SHA-256 resists attacks and is the recommended modern alternative.
No. Hashing happens on your device using the browseru2019s built-in crypto engine. Nothing is sent to a server.