TetraKitsHash Generator
Enter text and pick SHA-256, SHA-384, SHA-512, or SHA-1 to generate a cryptographic hash digest — results update as you type, all in your browser.
Read: Hash Generator Guide: SHA-256 & SHA-512 Online →
- Free to Use
- No Signup
- Privacy Friendly
How to generate a hash
- 1
Enter your text
Paste or type the string you want to hash — passwords, API payloads, or file contents.
- 2
Choose algorithm
Select SHA-256 for general use, SHA-512 for stronger digests, or SHA-1 for legacy systems.
- 3
Copy the digest
Use the copy button to grab the hex hash for checksums, HMAC verification, or database storage.
Cryptographic hash functions
A hash function maps input of any size to a fixed-length digest. The same input always produces the same hash; tiny changes produce completely different output.
- SHA-256 — 64 hex characters, widely used in TLS, Bitcoin, and Git
- SHA-512 — 128 hex characters, stronger collision resistance
- SHA-1 — legacy 40-character digest; avoid for new security work
Note: Hashing is one-way — you cannot recover the original text from a hash.
Why Use This Tool?
Multiple Algorithms
SHA-256, SHA-384, SHA-512, and SHA-1 in one tool.
Live Output
Hash updates as you type — no submit button needed.
Developer Ready
Quick digests for API testing, checksums, and config validation.
Client-Side
Text never leaves your browser — Web Crypto API only.
Frequently Asked Questions
Which hash algorithm should I use?
SHA-256 is the default for most applications. Use SHA-512 when you need a longer digest; avoid SHA-1 for security-sensitive work.
Is this the same as encryption?
No. Hashes are one-way fingerprints. Encryption can be reversed with a key; hashes cannot.
Can I hash files?
This tool hashes text input. For file checksums, paste file contents or use a dedicated file hash tool.
Does it use the Web Crypto API?
Yes. Hashing runs locally via the browser SubtleCrypto interface — no server calls.
Is this hash generator free?
Yes. Unlimited hashing with no signup; all processing stays on your device.
Cryptographic Hashes Without OpenSSL
API signatures, password storage verification, and content checksums all need SHA digests — but installing OpenSSL or writing Node scripts is overkill for a quick check. Paste text, pick an algorithm, and copy the hex hash in seconds.
