Base64デコーダー

Base64をテキストに変換

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Base64とは？

Base64はバイナリデータを64種類の印刷可能なASCII文字で表現するエンコード方式です。

Base64の仕組み

Base64 encoding works by taking groups of three bytes (24 bits) of binary data and splitting them into four groups of six bits each. Each 6-bit group is then mapped to one of 64 printable ASCII characters.

一般的な用途

  • Embedding images in HTML/CSS using data URIs
  • Sending email attachments via MIME encoding
  • Encoding binary data in JSON and XML payloads
  • HTTP Basic Authentication credentials
  • Storing binary data in text-based databases
  • Data transfer between different systems and platforms