SHA Hash Generator
Compute SHA-1, SHA-256 and SHA-512 for any text.
About SHA Hash Generator
A hash turns any input into a fixed-length fingerprint, and the process is one-way — you cannot recover the input from the output. Its main use is integrity checking: change a single bit of a file and the hash comes out completely different.
How to use SHA Hash Generator
- 1
Enter the text you want hashed.
- 2
SHA-1, SHA-256, SHA-384 and SHA-512 are computed simultaneously.
- 3
To verify a download, compare the result with the published value.
- 4
Copy whichever digest you need.
Frequently asked questions
Can a hash be reversed to the original text?
No, it is a one-way mathematical function. What reverse-lookup sites do is search a database of precomputed hashes, not actually invert anything.
Which one should I use to store passwords?
None of these. The SHA family is too fast for passwords, which is exactly what makes brute-force guessing easy. Use bcrypt or Argon2 — deliberately slow and salted.
Why is MD5 not offered here?
Because Web Crypto, the standard browser cryptography interface, deliberately omits MD5 — the algorithm has been broken for years and deliberate collisions are easy to produce. If you need MD5 to check an old file, use your operating system command line tool.
Is SHA-1 still usable?
Only for file integrity checks and compatibility with legacy systems such as Git. For digital signatures or any security purpose it is broken and you should choose SHA-256 or stronger.