#serialization

A lightweight library for converting complex objects to and from simple Python datatypes.

Apache Avro is a data serialization system.

HTML parsing/serialization toolset for Node.js. WHATWG HTML Living Standard (aka HTML5)-compliant.

Python CBOR (de)serializer with extensive tag support

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

Python library for serializing any arbitrary object graph into JSON. It can take almost any Python object and turn the object into JSON. Additionally, it can reconstitute the object back into Python.

Composable custom class converters for attrs, dataclasses and friends.

Fast and well tested serialization library

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

Makes life working with units of measurement just a little bit better.

Rust implementation of protobuf with editions support, JSON serialization, and zero-copy views

A low-level, lightweight protocol buffers implementation in JavaScript.

Protocol Buffers for JavaScript and TypeScript. Very fast, fully conformant, and unusually versatile. No protoc required.

YamlDotNet is a .NET library for YAML

Self-hosted authentication & authorization system (IAM: OAuth2 & OpenID Connect provider with realms, RBAC & ABAC policies, MFA (TOTP, passkeys, email OTP), identity federation (OIDC, LDAP) and session management.

MessagePack serializer implementation for Python msgpack.org[Python]

Databento Binary Encoding (DBN) - Fast message encoding and storage format for market data

Rust implementation of Binary Object Representation Serializer for Hashing

🎒 Token-Oriented Object Notation (TOON) – Compact, human-readable, schema-aware JSON for LLM prompts. Spec, benchmarks, TypeScript SDK.

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Strongly typed JSON library for Rust