#️⃣ Hash Generator

生成 cryptographic hashes from text or files

🔒 画像がデバイスの外に出ることはありません。 すべての処理はWeb Crypto API (SubtleCrypto)を使用してブラウザ内でローカルに行われます。アップロード、サーバー、追跡は一切ありません。

特長

  • Multiple Algorithms — 生成 MD5, SHA-1, SHA-256, and SHA-512 hashes simultaneously.
  • Text & File Input — Hash text strings or drop files to compute their checksums.
  • 100% Private — Hashing is done locally using the Web Crypto API. Nothing is sent to any server.
  • One-Click Copy — Copy any hash value to your clipboard with a single click.

仕組み

  1. Enter text or drop a file — Type or paste text, or drop a file to hash its contents.
  2. View hash results — See MD5, SHA-1, SHA-256, and SHA-512 hashes computed instantly.
  3. Copy the hash you need — Click any hash value to copy it to your clipboard.

活用例

  • Verify file integrity by comparing checksums
  • 生成 password hashes for development and testing
  • Compute checksums for file distribution

よくある質問

Which algorithm should I use?

SHA-256 is the most widely used for security purposes. MD5 and SHA-1 are common for checksums but are not recommended for security-sensitive applications.

Is MD5 included via Web Crypto?

MD5 is computed using a lightweight JavaScript implementation since Web Crypto doesn't support it natively. All other hashes use the Web Crypto API.

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