フォーマッター＆コード
MessagePack エンコーダー/デコーダー
JSON ⇄ MessagePack with size comparison.
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編集者注
Understanding · JSON shape, binary size — the wire format that drops the quotes.
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よくある質問
Quick answers.
›What is the benefit of MessagePack over JSON?
MessagePack reduces payload size by using binary representations for types and lengths rather than plain text. Smaller integers and short strings are particularly efficient, often saving 20-50% in bandwidth.
›Is any data sent to a server for processing?
No. The conversion logic runs entirely within your browser using JavaScript. Your sensitive JSON structures and binary data never leave your local machine.
›How do I input MessagePack data?
You can paste MessagePack data as either a hexadecimal string or a Base64 encoded string. The tool will automatically detect the format and decode it back into readable JSON if the structure is valid.
›Why is my MessagePack output larger than expected?
While MessagePack is generally smaller, very small objects or those with many long, unique keys may see less dramatic savings. For maximum efficiency, MessagePack is often used with integer keys or predefined schemas.
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