July 22, 2026
Serialized drama, copied at light speed
MemoryPack: Zero encoding extreme performance binary serializer for C#
This new C# tool claims wild speed boosts — and commenters are losing their minds
TLDR: MemoryPack is a new tool for C# and Unity that says it can pack and unpack data dramatically faster than major alternatives. Commenters split between pure hype, old-school jokes that it’s basically fancy memory copying, and side praise for rivals that may be better in everyday use.
A new coding tool called MemoryPack just rolled into town promising absurdly fast ways to pack data, and the comments instantly turned into a mix of hype, sarcasm, and performance chest-thumping. The big claim? It can save and load information far faster than popular rivals, with the creator bragging about speed jumps as high as 10 times faster for normal data and a jaw-dropping 50 to 200 times faster for certain arrays. In plain English: it’s being pitched as a turbo button for apps and games built with C# and Unity.
But the real entertainment is in the peanut gallery. One commenter simply screamed “XTREEEEM”, which honestly captures the entire vibe: half amazement, half energy-drink commercial. Another went full retro-snark, joking that memcpy was already the best serializer in 1983, basically saying, “Congrats on rediscovering copying memory really fast.” That’s the central drama here: is this a revolutionary breakthrough, or just a very polished version of an old trick? Meanwhile, a quieter but spicy side-thread gave unexpected love to a competitor, with one person admitting they were surprised how well Orleans performs in most real-world cases.
So yes, the product pitch is all about speed, modern tools, and game-dev friendliness. But the comments tell the juicier story: hype vs eye-rolls, old-school smugness vs new-school optimization, and everyone circling the same question — is this the future, or just fast nostalgia with better branding?
Key Points
- •MemoryPack is introduced as a zero-encoding binary serializer for C# and Unity with benchmarked performance claims against several existing serializers.
- •The article reports that MemoryPack is about 10x faster than System.Text.Json for standard objects and 2x to 5x faster than other binary serializers, with much larger gains for struct arrays.
- •Its design is based on a C#-optimized binary format, .NET 7, C# 11, and Incremental Source Generator-based code generation.
- •The feature set includes modern I/O API support, Native AOT-friendly source generation, deserialization into existing instances, polymorphism, version tolerance, circular references, streaming, TypeScript generation, ASP.NET Core formatting, and Unity IL2CPP support.
- •MemoryPack is distributed via NuGet, recommends .NET 7 for best performance, requires at least .NET Standard 2.1, and uses source-generated code triggered by the [MemoryPackable] attribute and partial classes.