JavaScript Tested Serializers

Name	Category	Package	Optimal API
JSON.stringify	JSON baseline	builtin	JSON.stringify / JSON.parse
fast-json-stringify	JSON	fast-json-stringify	compile once, then stringify + JSON.parse
simdjson	JSON	simdjson (optional native)	parse on UTF-8 string
msgpackr	MessagePack	msgpackr	reused Packr / Unpackr
@msgpack/msgpack	MessagePack	@msgpack/msgpack	encode / decode
cbor-x	CBOR	cbor-x	reused Encoder / Decoder
cbor	CBOR	cbor	encode / decodeFirstSync
avsc	Avro	avsc	Type.forValue in prepare; toBuffer / fromBuffer
protobufjs	Protobuf	protobufjs	preloaded Type.encode / decode
bson	BSON	bson	BSON.serialize / deserialize
v8-serializer	Native	node:v8	v8.serialize / v8.deserialize
bser	Binary	bser	dumpToBuffer / loadFromBuffer

Notes

• simdjson is optional; if the native addon fails to build, it is omitted (still ≥10 serializers).
• protobufjs uses a real Person/SimpleObject schema; other types use a JSON-in-protobuf wrapper (documented limitation).
• v8-serializer is not portable across languages/processes; included as the Node-native baseline.