CBOR MessagePack Converter

Convert JSON, CBOR, and MessagePack

CBOR (Concise Binary Object Representation) and MessagePack are compact binary serializations often used in APIs, IoT payloads, and caching layers. This converter lets you move data between JSON, CBOR hex, and MessagePack hex without installing libraries locally. Pair it with JSON to YAML Converter when you need human-readable config formats.

Paste JSON to inspect the binary encoding size, or paste hex bytes to recover structured JSON. All encoding and decoding runs in your browser using standard CBOR and MessagePack libraries.

Typical Use Cases

• Debug binary API responses by converting MessagePack or CBOR to JSON.
• Compare payload sizes before choosing a wire format.
• Translate test fixtures between JSON and binary hex dumps.