Hash Generator

Generate SHA-1, SHA-256, SHA-384, and SHA-512 hashes from text

SHA-256 —
SHA-1 —
SHA-384 —
SHA-512 —

How to use this tool

Follow these steps to generate a hash:

  1. Type or paste your text into the input area
  2. View the hashes — SHA-256, SHA-1, SHA-384, and SHA-512 update automatically as you type
  3. Copy any hash using its "Copy" button

All hashing happens locally in your browser using the Web Crypto API — your text never leaves your device.

Best for these scenarios

This hash generator is particularly useful in these common situations:

  • File integrity checks — Compare a published checksum against a hash you generate to confirm nothing was altered
  • API and webhook development — Generate reference hashes while building or debugging signature verification
  • Data deduplication — Quickly check whether two pieces of text are identical without comparing them manually
  • Learning cryptography basics — See how even a one-character change completely changes the output hash

Whether you're a developer, student, or IT professional, this tool gives instant, accurate hash values.

Tips and limitations

To get the most out of this hash generator, keep these points in mind:

  • No MD5 or SHA-1 for security use — Both are considered cryptographically broken; SHA-1 is included here for legacy compatibility checks only, not for security-sensitive work
  • Text only — This tool hashes the text you type, not uploaded files
  • Browser compatibility — Requires a modern browser with Web Crypto API support (Chrome, Firefox, Safari, Edge)
  • Privacy — All hashing happens locally; no data is sent to servers

For hashing large files, dedicated command-line tools (like sha256sum) are typically more practical.

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FAQ

Which hash algorithms does this tool support?

SHA-1, SHA-256, SHA-384, and SHA-512, generated using your browser's built-in Web Crypto API. MD5 is not offered since it is cryptographically broken and no longer considered secure for any purpose.

Is my text uploaded to a server to generate the hash?

No. The hash is computed entirely in your browser using the native Web Crypto API. Your text is never sent anywhere.

What is a hash used for?

A hash is a fixed-length fingerprint of data. It's commonly used to verify a file wasn't corrupted or tampered with, to store passwords without keeping the original text, and to quickly compare whether two pieces of data are identical.

Why do the same input and algorithm always produce the same hash?

Hash functions are deterministic — the same input always produces the same output. That's what makes hashes useful for verifying that data hasn't changed: if even one character is different, the entire hash changes completely.