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Hash Generator

Generate SHA-1 / SHA-256 / SHA-384 / SHA-512 hashes from text instantly.

Shortcuts: Ctrl/Cmd+Enter (Sample), Ctrl/Cmd+Shift+C (Copy SHA-256), Ctrl/Cmd+S (Download)

SHA-1

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SHA-256

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SHA-384

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SHA-512

Waiting for input

File Hash (Drag & Drop)

Drop a file here to calculate hash
SHA-1
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SHA-256
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SHA-384
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SHA-512
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How to Use

  1. 1

    Enter any text in the input box.

  2. 2

    The tool calculates SHA-1 / SHA-256 / SHA-384 / SHA-512 instantly.

  3. 3

    Click copy on any row to use the hash value.

Features

  • ✓Multiple algorithms at once
  • ✓Real-time calculation
  • ✓One-click copy
  • ✓Fully browser-based privacy

FAQ

Q. Is my input sent to your server?

A. No. Hashing is processed entirely inside your browser.

Q. Can I hash files with this tool?

A. This version focuses on text input. File hashing can be added in a future update.

Technical Notes

The tool uses the Web Crypto API via crypto.subtle.digest for secure hash computation.

Text is converted to UTF-8 bytes with TextEncoder before hashing.

Security & Privacy

Input text never leaves your device and is not transmitted over the network.

This design is suitable for private verification workflows.

Examples, Security Cautions, and Common Mistakes

Examples

  • Compare a downloaded file's SHA-256 hash with the value published by the distributor.
  • Check whether a string or configuration value changed by comparing hashes before and after.
  • Create fixed-length identifiers for test data without displaying the original value directly.

Cautions

  • Prefer SHA-256 or stronger for integrity checks; MD5 and SHA-1 are weak against collisions.
  • Hashing is not encryption. Short inputs may still be guessed by brute force.
  • For password storage, use a dedicated salted password hashing algorithm instead of a simple hash.

Common Mistakes

  • Assuming an MD5 match proves security instead of only matching one weak digest.
  • Ignoring case, line breaks, or trailing spaces that change the resulting hash.
  • Storing passwords with a single unsalted SHA-256 hash.

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