How to use
01
Enter the exact text
Paste your content into the input area. Watch for invisible differences like trailing newlines or tabs, because a single changed byte produces a completely different digest.
02
Press Compute hashes
One click calculates SHA-1, SHA-256, SHA-384, and SHA-512 together, so you can compare against whichever algorithm the other side published.
03
Copy the digest you need
Each algorithm row includes a copy button for the hex output. Use Clear to wipe both the input and results before hashing something new.
Why Hash Generator
- Uses the browser Web Crypto API, cryptographically strong.
- Multiple algorithms in one click.
- Runs entirely client-side. Your data is never uploaded.
Common questions
Which algorithms does this hash generator support?
Four from the SHA family: SHA-1, SHA-256, SHA-384, and SHA-512. All are computed by the browser's native crypto.subtle implementation, so results match what OpenSSL or any standard library produces for the same bytes.
Why is there no MD5 option here?
MD5 has had demonstrated collisions since 2004, so this tool sticks to SHA algorithms. If a legacy system forces you to find an md5 hash generator, compute it in code and keep it away from anything security-related.
How long is a SHA-256 hash supposed to be?
Always 64 hexadecimal characters, which encodes 256 bits. SHA-1 gives 40 characters, SHA-384 gives 96, and SHA-512 gives 128, regardless of how long the input was.
Can this tool hash an entire file?
It hashes text you paste, so it suits strings, configs, and small documents. For large binaries, run sha256sum on Linux and macOS or CertUtil on Windows so you're hashing raw bytes rather than pasted text.
Is a fast hash like SHA-256 suitable for storing passwords?
No. Password storage calls for salted, deliberately slow algorithms such as bcrypt or Argon2, which exist specifically to make guessing expensive. General-purpose digests are built for speed, which is the opposite of what you want there.
Will a sha512 hash online match the one my server computes?
Yes, hashing is deterministic: identical bytes always give identical digests. When results differ, the inputs differ, usually through an extra newline, different character encoding, or hidden whitespace.
What is a checksum generator online actually used for?
Integrity checks. You compute a digest of what you received and compare it with the digest the publisher listed. A match means the content arrived unmodified; any difference means the bytes changed somewhere along the way.