クイックスタート
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Input text or Base64
Chinese, emoji, and special characters are supported.
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Choose encode or decode
Results are generated instantly.
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Copy result
Copy output for API requests or configs.
Base64 Encoder/Decoder
Useful for API payload debugging, credential checks, and text transport prep.
プライバシー：アップロードしないローカルで処理します。
↓ 下の入力領域に貼り付けて、結果をすぐに表示します。★QADB 610☆QADB 610☆QADB 610☆QADB 610☆QADB 610☆QADB 610☆QADB 610☆QADB 610☆QADB
在此输入文本或 Base64
支持中文与 emoji，选择编码或解码后查看结果。
Useful for API payload debugging, credential checks, and text transport prep.
Base64 is not encryption
Base64 is encoding, not security. Anyone can decode it back.
Common use cases
Base64 appears in Authorization headers, Data URLs, and email payloads.
例
Encode example
Input
hello
Output
aGVsbG8=
Decode example
Input
5L2g5aW9
Output
你好
FAQ
Why decode throws error?
Input may be invalid Base64 or truncated.
Does it support UTF-8?
Yes, UTF-8 strings including CJK and emoji are supported.