How to hash a string in 3 easy steps
- 1
Paste your text
Any string — empty strings hash too.
- 2
Pick the algorithm
MD5, SHA-1, SHA-256, or SHA-512.
- 3
Copy the digest
The hexadecimal hash appears instantly.
Why use the string hash calculator tool from Super Utility Hub?
Hashes fingerprint text: the same input always produces the same fixed-length output, and any change in the input scrambles it completely. Developers use them for checksums, password verification, and content addressing.
This tool computes MD5, SHA-1, SHA-256, and SHA-512 of any text instantly. SHA-256 and SHA-512 run on the browser's native WebCrypto; MD5 is computed in pure JavaScript.
- Processes everything in your browser — no upload servers involved
- Free forever with unlimited uses
- Works on Windows, macOS, Linux, Android and iOS
- No watermark or branding on your output, ever
Frequently asked questions
Which algorithm should I use?
SHA-256 for almost everything today. MD5 and SHA-1 are cryptographically broken and should only be used for legacy compatibility or non-security checksums.
Can I reverse a hash?
No — hashing is one-way by design. Attackers only succeed with weak passwords via precomputed lookup tables, which is why salted hashing matters.
Is this the same as encryption?
No. Encryption is reversible with a key; hashing is not reversible at all. They serve different purposes.