Hash Generator
Generate cryptographic hashes (SHA-256, SHA-1, SHA-512, SHA-384) of any text — entirely in your browser with no data sent to any server.
What Does This Tool Do?
A cryptographic hash is a fixed-length fingerprint of data — the same input always produces the same hash, but even a tiny change in the input produces a completely different hash. This tool calculates SHA-256, SHA-1, SHA-512, and SHA-384 hashes using your browser's built-in cryptographic functions, so your text never leaves your device.
Key Features
How to Use This Tool
- Paste the text you want to hash.
- Select your desired algorithm (SHA-256 recommended for most uses).
- Click Generate Hash to compute the hash.
- Copy the hex or Base64 output.
How It Works
The browser's native crypto.subtle.digest() API is used to compute the hash. This is the same cryptographic library used for HTTPS connections — it's fast, accurate, and completely local to your browser.
Common Use Cases
Frequently Asked Questions
Which algorithm should I use?
SHA-256 is the most widely used and recommended for general purposes. SHA-1 is older and considered weak for security use. SHA-512 produces a longer hash with higher security margin.
Is SHA-256 suitable for password hashing?
No — for passwords use bcrypt, Argon2, or scrypt, which are designed to be slow. SHA-256 is too fast for password hashing, making brute force attacks feasible.
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