Base64 Encode/Decode
Instantly encode and decode Base64 text in your browser. Supports multi-byte characters.
Input Text
Base64 String
How to Use
Select encode or decode, then enter text to see the conversion result instantly. Supports Japanese and other multi-byte characters.
How It Works
Text is first encoded to UTF-8 before Base64 conversion, ensuring that multi-byte characters including Japanese are handled correctly.
よくある質問
日本語テキストもエンコードできますか？
画像のBase64変換はできますか？
入力データはサーバーに送信されますか？
スマートフォンでも使えますか？
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