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Hash Generator — SHA-1, SHA-256, SHA-384, SHA-512

Generate cryptographic hashes from any text. Uses the browser's native crypto.subtle — your input never leaves your device.

SHA-1
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SHA-256
—
SHA-384
—
SHA-512
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MD5 is intentionally excluded — it's broken for security purposes. Use SHA-256 or stronger.

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About this tool

Generate cryptographic hashes

Enter text and get its MD5, SHA-1 or SHA-256 hash instantly — useful for checksums, deduplication and verifying data integrity.

Pick the right algorithm

Use SHA-256 for anything security-related. MD5 and SHA-1 are broken for security (collisions exist) — fine for a quick non-security checksum, but never for passwords or signatures.

Hashes are one-way: you can verify a value by re-hashing it, but you can’t reverse a hash to the original. Everything runs locally.

How to use the Hash Generator (SHA family)

Takes about a minute. No signup, no download, your data stays in your browser.

  1. 1
    Open the tool. Scroll up to the Hash Generator (SHA family) above — it loads instantly in your browser, no install needed.
  2. 2
    Enter your values. The fields come pre-filled with realistic defaults so you can see how it works — replace them with your own numbers.
  3. 3
    Read the result. The output updates instantly. Copy or share it — nothing is uploaded to a server, everything stays on your device.

Frequently asked questions

Common questions about the Hash Generator (SHA family).

How do I generate a hash?

Enter your text, pick an algorithm (MD5, SHA-1, SHA-256…) and the hash is computed instantly.

Which hash algorithm should I use?

Use SHA-256 for security and integrity. Avoid MD5 and SHA-1 for anything security-related — use them only for quick checksums.

Can a hash be reversed?

No — hashes are one-way. They’re for verifying data, not for decryption.

Is my input private?

Yes — hashing runs in your browser; nothing is uploaded.

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