PyPI · npm83Goodhealth index
marshmallow-code/marshmallowA lightweight library for converting complex objects to and from simple Python datatypes.
Python★ 7,246↓ 122M/moJul 17, 2026
jcrist/msgspecA fast serialization and validation library, with builtin support for JSON, MessagePack, YAML, and TOML
Python · C★ 3,860↓ 41.4M/moJul 17, 2026
Fatal1ty/mashumaroFast and well tested serialization library
Python★ 930↓ 37M/moJul 21, 2026
crates.io72Goodhealth index
bourumir-wyngs/serde-saphyrA strongly typed, comment-supporting YAML deserializer that deserializes YAML directly into your Rust types without constructing an intermediate tree of “abstract values.”
Rust★ 205↓ 757.2K/moJul 19, 2026
crates.io71Goodhealth index
tafia/calamineA pure Rust Excel/OpenDocument SpreadSheets file reader: rust on metal sheets
Rust★ 2,339↓ 987.5K/moJul 14, 2026
MystenLabs/ts-sdksNo repository description published.
TypeScript★ 99↓ 3.3M/moJul 21, 2026
crates.io70Goodhealth index
serde-rs/jsonStrongly typed JSON library for Rust
Rust★ 5,598↓ 77.3M/moJul 15, 2026
crates.io66Moderatehealth index
Devolutions/picky-rsPicky portable PKI implementation and microservice
Rust★ 68↓ 1.9M/moJul 22, 2026
crates.io66Moderatehealth index
dtolnay/typetagSerde serializable and deserializable trait objects
Rust★ 1,525↓ 5.8M/moJul 19, 2026
crates.io65Moderatehealth index
dtolnay/miniserdeData structure serialization library with several opposite design goals from Serde
Rust★ 937↓ 1.8M/moJul 19, 2026
crates.io65Moderatehealth index
nickbabcock/boxcarsRocket League Replay parser in Rust
Rust★ 148↓ 3,430/moJul 14, 2026
crates.io65Moderatehealth index
sebastienrousseau/noyalibPure-Rust YAML 1.2 ecosystem: zero unsafe, 100% spec compliance (406/406 official suite), streaming-first serde, lossless CST, JSON-Schema validation. Library + CLI (noyafmt, noyavalidate) + LSP + MCP + WASM bindings.
Rust★ 7↓ 0/moJul 13, 2026
crates.io64Moderatehealth index
dtolnay/monostateType that deserializes only from one specific value
Rust★ 281↓ 5.6M/moJul 19, 2026
crates.io · npm62Moderatehealth index
gpu-cli/openapi-to-rustOpenAPI generator for Rust: typed models, async Reqwest/SSE clients, and Axum server scaffolding for OpenAPI 3.0/3.1.
Rust★ 21↓ 2,235/moJul 23, 2026
crates.io61Moderatehealth index
Diggsey/ijsonMore efficient alternative to `serde_json::Value` which saves memory by interning primitive values and using tagged pointers.
Rust★ 146↓ 224K/moJul 17, 2026
crates.io61Moderatehealth index
dtolnay/serde-reprSerialize and deserialize C-like enum as underlying repr
Rust★ 267↓ 21.5M/moJul 19, 2026
crates.io61Moderatehealth index
x52dev/serde-utilsA collection of serde utility crates.
Rust★ 7↓ 570.7K/moJul 21, 2026
crates.io60Moderatehealth index
minghuaw/fe2o3-amqpA rust implementation of the AMQP1.0 protocol based on serde and tokio.
Rust★ 90↓ 959.2K/moJul 14, 2026
PyPI60Moderatehealth index
toml-f/toml-fTOML parser implementation for data serialization and deserialization in Fortran
Fortran★ 127Jul 18, 2026
crates.io56Moderatehealth index
greenticai/serde-yaml-gtcStrongly typed YAML library for Rust maintained by Bourumir Wyngs
Rust★ 1↓ 8,902/moJul 22, 2026
crates.io56Moderatehealth index
paritytech/jsonrpcRust JSON-RPC implementation
Rust★ 819↓ 2.2M/moJul 19, 2026
crates.io56Moderatehealth index
twittner/minicborA small CBOR codec suitable for no_std environments.
Rust★ 102↓ 2M/moJul 21, 2026
crates.io55Moderatehealth index
bytedream/serde-inline-defaultSerde default values via inline attribute declaration
Rust★ 38↓ 276.5K/moJul 22, 2026
crates.io55Moderatehealth index
oxidecomputer/serde_tokenstreamserde::Deserializer for proc_macro/proc_macro2::TokenStream
Rust★ 77↓ 1.7M/moJul 21, 2026
crates.io55Moderatehealth index
rgb-protocol/rgb-strict-encodingNo repository description published.
Rust★ 4↓ 4,651/moJul 17, 2026
crates.io54Moderatehealth index
wojciech-graj/bin-protoConversion to/from binary for arbitrary types. With no_std and no_alloc support.
Rust★ 32↓ 10.8K/moJul 21, 2026
crates.io53Moderatehealth index
jwodder/serde-json-fmtConfigurable formatting for serde_json serialization
Rust★ 3↓ 72.7K/moJul 18, 2026
serde-rs/serdeSerialization framework for Rust
Rust★ 10.7K↓ 233M/moJul 19, 2026
sebastienrousseau/serde_yml[DEPRECATED] Final release is a thin compatibility shim. RUSTSEC-2025-0068 structurally fixed in 0.0.13. Migrate to a maintained alternative — see MIGRATION.md.
Rust · Makefile★ 120↓ 2.3M/moJul 20, 2026