1.toon-format / toon
🎒 Token-Oriented Object Notation (TOON) – compact, human-readable serialization of JSON data for LLM prompts. TypeScript SDK, CLI, benchmarks.
+185 stars
from 25,404 · score 5.23
Trending repositories
Ranked by Attention Score: stars gained over the last 30 complete days
41 repositories by Attention Score · Oct 4, 2026 – Nov 2, 2026 (UTC)
2.protocolbuffers / protobuf
Protocol Buffers - Google's data interchange format
+113 stars
from 72,032 · score 4.74
3.google / flatbuffers
FlatBuffers: Memory Efficient Serialization Library
+76 stars
from 26,525 · score 4.34
4.stephenberry / glaze
Extremely fast, in memory, serialization, reflection, and RPC library for C++. JSON, BEVE, BSON, CBOR, CSV, JSONB, MessagePack, TOML, YAML, EETF
+50 stars
from 3,045 · score 3.93
5.ijl / orjson
Fast, correct Python JSON library supporting dataclasses, datetimes, and numpy
+46 stars
from 8,237 · score 3.85
6.ibireme / yyjson
The fastest JSON library in C
+39 stars
from 3,891 · score 3.69
7.Neargye / magic_enum
Static reflection for enums (to string, from string, iteration) for modern C++, work with any enum type without any macro or boilerplate code
+34 stars
from 6,215 · score 3.56
8.MessagePack-CSharp / MessagePack-CSharp
Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]
+27 stars
from 6,784 · score 3.33
9.apache / fory
A blazingly fast multi-language serialization framework for idiomatic domain objects, schema IDL, and cross-language data exchange.
+21 stars
from 4,556 · score 3.09
10.aaubry / YamlDotNet
YamlDotNet is a .NET library for YAML
+11 stars
from 2,863 · score 2.48
11.fxamacker / cbor
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.
+10 stars
from 1,092 · score 2.40
12.USCiLab / cereal
A C++11 library for serialization
+8 stars
from 4,704 · score 2.20
13.marshmallow-code / marshmallow
A lightweight library for converting complex objects to and from simple Python datatypes.
+7 stars
from 7,238 · score 2.08
14.marcuswestin / store.js
Cross-browser storage for all use cases, used across the web.
+6 stars
from 13,967 · score 1.95
15.EsotericSoftware / kryo
Java binary serialization and cloning: fast, efficient, automatic
+6 stars
from 6,542 · score 1.95
16.inikulin / parse5
HTML parsing/serialization toolset for Node.js. WHATWG HTML Living Standard (aka HTML5)-compliant.
+6 stars
from 3,934 · score 1.95
17.rttrorg / rttr
C++ Reflection Library
+6 stars
from 3,482 · score 1.95
18.Neargye / nameof
Nameof operator for modern C++, simply obtain the name of a variable, type, function, macro, and enum
+6 stars
from 2,361 · score 1.95
19.pallets / itsdangerous
Safely pass trusted data to untrusted environments and back.
+5 stars
from 3,136 · score 1.79
20.felixguendling / cista
Cista is a simple, high-performance, zero-copy C++ serialization & reflection library.
+5 stars
from 2,251 · score 1.79
21.eyalz800 / zpp_bits
A lightweight C++20 serialization and RPC library
+5 stars
from 1,008 · score 1.79
22.biojppm / rapidyaml
Rapid YAML - a library to parse and emit YAML, and do it fast.
+5 stars
from 757 · score 1.79
23.mildsunrise / protobuf-inspector
🕵️ Tool to reverse-engineer Protocol Buffers with unknown definition
+4 stars
from 1,127 · score 1.61
24.FirelyTeam / firely-net-sdk
The official Firely .NET SDK for HL7 FHIR
+4 stars
from 936 · score 1.61
25.qsbase / qs
Quick serialization of R objects
+4 stars
from 442 · score 1.61
26.ZXShady / enchantum
Faster enum reflection for C++17 since I don't want to wait for C++26 reflection.
+4 stars
from 160 · score 1.61
27.zfoo-project / zfoo
💡Extremely fast enterprise server framework, can be used in RPC, game server, web server.
+3 stars
from 2,010 · score 1.39
28.fraillt / bitsery
Your binary serialization library
+3 stars
from 1,266 · score 1.39
29.chronoxor / FastBinaryEncoding
Fast Binary Encoding is ultra fast and universal serialization solution for C++, C#, Go, Java, JavaScript, Kotlin, Python, Ruby, Swift
+3 stars
from 960 · score 1.39
30.jorgen / json_struct
json_struct is a single header only C++ library for parsing JSON directly to C++ structs and vice versa
+2 stars
from 473 · score 1.10
31.cg-tuwien / Auto-Vk-Toolkit
Getting serious about Vulkan development with this modern C++ framework, battle-tested in rapid prototyping, research, and teaching. Includes support for real-time ray tracing (RTX), serialization, and meshlets.
+2 stars
from 446 · score 1.10
32.PragmaTwice / protopuf
Protocol Puffers: A little, highly templated, and protobuf-compatible serialization/deserialization header-only library written in C++20
+2 stars
from 207 · score 1.10
33.json-iterator / goArchived
A high-performance 100% compatible drop-in replacement of "encoding/json"
+1 stars
from 13,853 · score 0.69
34.RuedigerMoeller / fast-serialization
FST: fast java serialization drop in-replacement
+1 stars
from 1,592 · score 0.69
35.pascaldekloe / colfer
binary serialization format
+1 stars
from 759 · score 0.69
36.jamescourtney / FlatSharp
Fast, idiomatic C# implementation of Flatbuffers
+1 stars
from 572 · score 0.69
37.beached / daw_json_link
Fast, convenient JSON serialization and parsing in C++
+1 stars
from 512 · score 0.69
38.permazen / permazen
Language-Natural Persistence Layer for Java
+1 stars
from 423 · score 0.69
39.Zulu-Inuoe / jzon
A correct and safe(er) JSON RFC 8259 reader/writer with sane defaults.
+1 stars
from 202 · score 0.69
40.nihilai-collective / Jsonifier
A few classes for extremely fast json parsing/serializing in modern C++. Possibly the fastest json parser in C++. Possibly the fastest json serializer in C++.
+1 stars
from 102 · score 0.69
41.fisxoj / sanity-clause
A data serialization/contract library for common lisp
+1 stars
from 52 · score 0.69