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SHA Hash Generator

Generate SHA-256, SHA-512 or SHA-1 hashes from any text. Uses the native Web Crypto API — your data never leaves the browser.

  • 100% free
  • No sign-up
  • Clear controls
  • Open and use
sha-256
Hash will appear here
What this tool does
  • SHA-256, SHA-512, SHA-1
  • Web Crypto API — blazing fast
  • Full Unicode support
  • Copy hash with one click
  • 100% browser — no server
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The short version

What is SHA Hash Generator?

SHA (Secure Hash Algorithm) is a family of cryptographic hash functions published by NIST.

SHA-256 produces a 256-bit (64-character hex) hash, SHA-512 produces a 512-bit (128-character hex) hash, and SHA-1 produces a 160-bit (40-character hex) hash. These algorithms are used for data integrity verification, digital signatures, SSL certificates, blockchain, and password hashing. This tool uses your browser's native Web Crypto API (crypto.subtle.digest) for hardware-accelerated hashing that is both fast and secure. SHA-256 is the gold standard for most security applications — it is used in Bitcoin mining, TLS certificates, and code signing. SHA-512 offers even stronger security for sensitive applications. SHA-1, while deprecated for security use, is still used in Git commit hashes and legacy systems.

SHA Hash Generator showing a worked example — Generate SHA-256, SHA-512 or SHA-1 hashes using the native Web Crypto API.
SHA Hash Generator with the built-in example loaded. Free, no sign-up, and the result appears as you type.
Step by step

How to use SHA Hash Generator

  1. 1

    Select your algorithm

    Choose SHA-256 (default, most common), SHA-512 (strongest), or SHA-1 (legacy compatibility). The hash regenerates instantly when you switch.

  2. 2

    Enter your text

    Type or paste the text you want to hash. The hash output updates in real time as you modify the input.

  3. 3

    Copy the hash

    Click Copy to grab the hex-encoded hash string. The character count is shown so you can verify the algorithm output length.

What's inside

Everything this tool
does for you

  • SHA-256, SHA-512, and SHA-1 algorithms
  • Native Web Crypto API — hardware accelerated
  • Real-time hashing as you type
  • Full Unicode and emoji support
  • Shows hash length for algorithm verification
  • Runs in your browser — data never leaves your browser
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