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Hash Generator

Compute SHA-1, SHA-256, SHA-384, and SHA-512 hashes from any text, entirely in your browser. Hex or Base64 output with one-click copy. Powered by the Web Crypto API — your input never leaves your machine.

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Published May 25, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Type or paste text and the tool computes all four SHA digests at once using the browser’s native crypto.subtle.digest (Web Crypto API). Toggle between Hex and Base64 to switch the output encoding — both are derived from the same digest, so switching is instant. Each result has its own copy button.

Features

  • Four algorithms: SHA-1, SHA-256, SHA-384, SHA-512 computed simultaneously
  • Hex or Base64: switch output encoding without recomputing
  • Copy: one-click copy for any individual digest
  • Live: hashes update as you type
  • Private: uses the Web Crypto API — input is never sent anywhere

Use Cases

  • Verifying file or payload checksums during development
  • Generating deterministic cache keys or content fingerprints
  • Cross-checking a hash produced by a backend or CLI tool

Note: MD5 is intentionally omitted — it is cryptographically broken and not supported by the Web Crypto API. SHA-1 is included for legacy interop only; prefer SHA-256 or stronger for anything security-sensitive.