serialization

flatbuffers

+16

FlatBuffers: Memory Efficient Serialization Library

toon

+27

🎒 Token-Oriented Object Notation (TOON) – compact, human-readable serialization of JSON data for LLM prompts. TypeScript SDK, CLI, benchmarks.

glaze

+12

Extremely fast, in memory, serialization, reflection, and RPC library for C++. JSON, BEVE, BSON, CBOR, CSV, JSONB, MessagePack, TOML, YAML, EETF

ron-rs/ron

+11

Rusty Object Notation

protobuf

+9

Protocol Buffers - Google's data interchange format

msgspec

+8

A fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML

ijl/orjson

+7

Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy

fxamacker/cbor

+4

CBOR codec (RFC 8949, RFC 8742) with CBOR tags, Go struct tag options (toarray, keyasint, omitempty, omitzero), float64/32/16, big.Int, and fuzz tested.

magic_enum

+4

Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code