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Cysharp
MemoryPack
C#2023–2026
Cysharp / MemoryPack

MemoryPack

Zero encoding extreme performance binary serializer for C# and Unity.

5Distinct people
5Mentions
0Explicit recommenders
4.8KGitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Zero encoding extreme performance binary serializer for C# and Unity.

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

Mentioned in the same Hacker News threads. That is not proof they are substitutes.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by year5 dated mentions

Observed mentions: 2023-05-26 13:22:25 UTC to 2026-07-19 12:20:56 UTC.

0122023-01-01 00:00:00 UTC to 2024-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments20232024-01-01 00:00:00 UTC to 2025-01-01 00:00:00 UTC (exclusive): 2 mentions; 0 submissions, 2 comments20242025-01-01 00:00:00 UTC to 2026-01-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-01-01 00:00:00 UTC to 2027-01-01 00:00:00 UTC (exclusive): 1 mentions; 1 submissions, 0 comments. Incomplete calendar period.2026*

* An incomplete calendar period is marked with an outlined bar. Its count is not directly comparable with a full period.

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
20232023-01-01 00:00:00 UTC2024-01-01 00:00:00 UTC202
20242024-01-01 00:00:00 UTC2025-01-01 00:00:00 UTC202
20252025-01-01 00:00:00 UTC2026-01-01 00:00:00 UTC000
2026 (partial)2026-01-01 00:00:00 UTC2027-01-01 00:00:00 UTC110

What Hacker News says

5 sources
If you're in dotnet land, I'd recommend looking at magic onion [0] or memorypack [1]. It'll be much nicer to work with once you have a decent pile of message types. Otherwise it's easy to end up in an entity framework like situation where you're constantly serializing and deserializing, generating serializer wrappers, doubling up on dtos and schemas, etc. Although any of the cysharp libs are great in dotnet, definitely recommend checking out their back catalogue. [0] https://github.com/Cysharp/MagicOnion [1] https://github.com/Cysharp/MemoryPack
In Show HN: Kyoo – Self-hosted media browser (Jellyfin/Plex alternative)
Given it's a binary serialization framework, it should not be too difficult, because the domain is well-explored and numerous libraries exist in C# which address same goals that Fury does. More popular/newer examples are https://github.com/Cysharp/MemoryPack (which is similar to Fury with its own spec, C#-code first schema), https://github.com/MessagePack-CSharp/MessagePack-CSharp or even gRPC / Protobuf tooling https://github.com/grpc/grpc-dotnet
In Fury – Fast multi-language serialization framework powered by JIT and Zero-copy
With Unity/IL2CPP stuff: For general-purpose serialization libraries like JSON, you sometimes need to provide hints to make sure types are included: https://github.com/jilleJr/Newtonsoft.Json-for-Unity/wiki/Fi... For schema serialization on known types, there are codegen tools (i.e. moc for MessagePack): https://github.com/neuecc/MessagePack-CSharp MessagePack is migrating to Rosalyn code generators, so basically invisible codegen. Cysharp's newer serialization library, MessagePack, already uses this: https://github.com/Cysharp/MemoryPack
In Native AOT Overview

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