1.nlohmann / json
JSON for Modern C++
+738 stars
from 50,091 · score 6.61
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10 repositories by Attention Score · Aug 5, 2026 – Nov 2, 2026 (UTC)
2.MessagePack-CSharp / MessagePack-CSharp
Extremely Fast MessagePack Serializer for C#(.NET, .NET Core, Unity, Xamarin). / msgpack.org[C#]
+66 stars
from 6,745 · score 4.20
3.tarantool / tarantool
Get your data in RAM. Get compute close to data. Enjoy the performance.
+28 stars
from 3,649 · score 3.37
4.wind-c / comqtt
A lightweight, high-performance go mqtt server(v3.0|v3.1.1|v5.0) supporting distributed cluster
+24 stars
from 1,162 · score 3.22
5.msgpack / msgpack-python
MessagePack serializer implementation for Python msgpack.org[Python]
+12 stars
from 2,096 · score 2.56
6.taocpp / json
C++ header-only JSON library
+7 stars
from 676 · score 2.08
7.rpclib / rpclib
rpclib is a modern C++ msgpack-RPC server and client library
+4 stars
from 1,835 · score 1.61
8.lexmag / msgpax
High-performance and comprehensive MessagePack implementation for Elixir / msgpack.org[Elixir]
+2 stars
from 299 · score 1.10
9.msgpack / msgpack-cli
MessagePack implementation for Common Language Infrastructure / msgpack.org[C#]
+1 stars
from 858 · score 0.69
10.rybakit / msgpack.php
A pure PHP implementation of the MessagePack serialization format / msgpack.org[PHP]
+1 stars
from 406 · score 0.69