Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes
How to Use
- 1Enter or paste the text you want to hash
- 2See all hash formats generated instantly
- 3Copy the hash you need
Hash Algorithms
SHA-1 (160 bits)
Produces a 40-character hex string. Now considered weak for security purposes but still used for checksums and non-security applications.
SHA-256 (256 bits)
Produces a 64-character hex string. Part of SHA-2 family. Widely used for security applications, Bitcoin, and SSL certificates.
SHA-384 (384 bits)
Produces a 96-character hex string. A truncated version of SHA-512. Used when you need more security than SHA-256.
SHA-512 (512 bits)
Produces a 128-character hex string. The strongest SHA-2 variant. Used for high-security applications.
What is a Hash?
A cryptographic hash function takes any input and produces a fixed-size string of bytes. The output (hash) is deterministic — the same input always produces the same hash. However, it is computationally infeasible to reverse the process or find two different inputs that produce the same hash.
Hashes are used for password storage, data integrity verification, digital signatures, and blockchain technology. Even a tiny change in input produces a completely different hash.
FAQ
Is my data safe?
Yes. This tool uses the Web Crypto API built into your browser. Your data never leaves your device. No server requests are made.
Can I reverse a hash?
No. Hash functions are one-way by design. You cannot recover the original input from a hash. This is what makes them useful for password storage.
Which hash should I use?
For security purposes, use SHA-256 or SHA-512. Avoid SHA-1 for anything security-related as it has known vulnerabilities. For non-security checksums, any algorithm works.