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.
How do I use this as a sha256 hash generator?
Paste your text, click Compute hashes, and copy the SHA-256 row. As an online sha256 hash generator it uses the browser's Web Crypto API, so the sha256 hash online here matches what OpenSSL or your server library produces for the same bytes. The digest is always 64 hex characters.
Does this online hash generator compute more than one algorithm at once?
Yes. One click on Compute hashes returns SHA-1, SHA-256, SHA-384, and SHA-512 together, so as an online hash generator you can match whichever the other side published. Used as a hash code generator, each row has its own copy button for the hex output.
Can I generate a SHA-1 hash online here too?
Yes. SHA-1 is one of the four algorithms computed on every run, so to generate sha 1 hash online you just paste your text and read the SHA-1 row, which is 40 hex characters. Keep in mind SHA-1 is fine for checksums but no longer safe for security-sensitive work.
Is there an online md5 hash generator on this page?
No. This tool sticks to the SHA family, so it isn't an online md5 hash generator or a full md5 sha256 hash calculator; MD5 has had known collisions since 2004. If a legacy system truly needs MD5, compute it in code and keep it away from anything security related. For everything else, SHA-256 is the better default.