MessagePack-CSharp/MessagePack-CSharp

Health v2 · maintenance only

Flags: no_license

Adoption not part of the score

6783 stars · 775 forks observed · 2026-09-21

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

An extremely fast MessagePack binary serializer for C# targeting .NET, .NET Core, Unity, and Xamarin. It includes built-in LZ4 compression and outperforms other C# serializers for performance-critical applications.

Use cases

• serialize game state efficiently in Unity
• fast binary serialization for microservices
• compress network payloads with LZ4
• replace JSON with a compact binary format in C#
• serialize objects for distributed computing or data caches
• serialize data in Xamarin mobile apps

When to choose

• you need the fastest C# serializer with compact binary output
• you're building games or real-time systems in Unity where serialization speed matters
• you want built-in LZ4 compression without extra dependencies
• you need cross-platform .NET serialization including Unity and Xamarin

When to avoid

• you need human-readable serialization like JSON
• your project is not on the .NET/Unity ecosystem
• you need schema evolution features of protobuf with cross-language tooling
• you only serialize small payloads where speed is irrelevant

Facets

library · maturity stable

serialization compression developer-tools microservices performance cross-platform game-engine dotnet messagepack c-sharp lz4 binary-serialization unity xamarin game-development mobile

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