Hash Generator
Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text. Uses the Web Crypto API for fast, secure hashing.
Algorithm Comparison
| Algorithm | Output | Security | Use Case |
|---|---|---|---|
| SHA-1 | 160 bits | Weak | Legacy systems, checksums (not for security) |
| SHA-256 | 256 bits | Strong | Most common — TLS, blockchain, digital signatures |
| SHA-384 | 384 bits | Strong | Government/enterprise systems |
| SHA-512 | 512 bits | Strong | Maximum security, large data integrity |
How to Use This Hash Generator
- Type or paste text in the input area
- All hash values are computed instantly as you type
- Click Copy on any individual hash, or Copy All for all results
- Toggle Uppercase for uppercase hex output
What is Hashing?
A hash function takes input data of any size and produces a fixed-size output (the hash or digest). The same input always produces the same output, but even a tiny change in input produces a completely different hash. Hashing is one-way — you cannot reverse a hash to get the original data.
Frequently Asked Questions
Is my data safe?
Yes. All hashing is done using your browser's built-in Web Crypto API. No data is sent to any server.
Which algorithm should I use?
SHA-256 is the most widely used and recommended for most purposes. SHA-1 is considered weak and should only be used for non-security checksums.
Why is MD5 not included?
MD5 is considered cryptographically broken and is not supported by the Web Crypto API. Use SHA-256 or higher for any security-related hashing.