PrismKitJSONMessagePack ConverterMessagePack ConverterRuns in your browserLocalCopy linkMarkdownEncode JSON as MessagePack bytes in hex or Base64, or decode a .msgpack file back into JSON.JS Object to JSONConvert a JavaScript or JSON5 object literal with comments, single quotes and unquoted keys into strict JSON, and back, without running any code.JSON to TOONConvert JSON to TOON, the compact Token-Oriented Object Notation for LLM prompts, and back, with a size comparison.