Zero encoding extreme performance binary serializer for C# and Unity.
⚡ Executive Summary & Quick Facts
Authoritative SourceMemoryPack is MemoryPack is an open-source project written in C#: Zero encoding extreme performance binary serializer for C# and Unity..
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), Cysharp/MemoryPack has accumulated 4,776 GitHub stars and 325 forks. It is written in C#, licensed under MIT, and ranks #3,049 globally. It is actively maintained with the latest commit recorded on Nov 11, 2026.”
| Repository | Cysharp/MemoryPack ↗ |
|---|---|
| Primary Category | developer tools |
| Language & Stack | C# |
| Software License | MIT |
| Community Traction | ★ 4.8K stars · ⑂ 325 forks · #3,049 globally |
| Maintenance | ● Active (Last commit: Nov 11, 2026) · 34 open issues |
| Target Audience | Developers and engineering teams building with C#, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 97/100 · Grade A+Yes, MemoryPack is actively maintained. Continuous telemetry recorded the last code commit on Nov 11, 2026 (1 days ago). Supported by 4,776 stars and 325 community forks, this repository holds a calculated health index of 97/100, reflecting very active (commits within last 14 days) and healthy issue cadence.
Star History
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+119
STARS · LAST 30 DAYS
4
PER DAY
#128
MOST-STARRED C#
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +28 | +119 | +360 |
| Per day | 4 | 4 | 4 |
| Forks gained | +2 | +7 | +16 |
MemoryPack gained 119 stars in the last 30 days, about 4 a day, and now has 4.8K. It is about 4 years old and has averaged roughly 1.2K stars a year. It ranks #128 among C# repositories and #3,049 across all languages on GitHubRepo.
Trending Record
2
DAYS ON TRENDING
#9773
BEST RANK
Nov 11, 2026
FIRST APPEARANCE
Active
STATUS TODAY
MemoryPack has maintained a continuous presence across global trending indexes, peaking at #9773. Below is the 30-day activity profile:
💡 Overview
MemoryPack is an open-source project written in C#: Zero encoding extreme performance binary serializer for C# and Unity.
Engineered for speed, consistency, and developer ease, it solves common hurdles in C#. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in C# for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ git clone https://github.com/Cysharp/MemoryPack.git
cd MemoryPack⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
C# environment and standard tooling
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
MemoryPack coordinates its core functionality through a modular C# pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Production System Integration
Embed MemoryPack into C# backend services to handle core application logic.
CI/CD Automated Pipelines
Run automated validation, builds, and integration suites during deployments.
Developer Tooling & Workflows
Accelerate developer onboarding with pre-configured project utilities.
Open Source Extension
Fork and customize internal modules under the repository's open MIT license.
🚀 Getting Started
Install MemoryPack using your package manager: `git clone https://github.com/Cysharp/MemoryPack.git`
Initialize your project workspace or configuration file for MemoryPack.
Import MemoryPack into your codebase or invoke it directly from your terminal.
Execute your test suite or run `MemoryPack --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with C#, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
Cysharp/MemoryPack is currently ranked #3,049 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #3,044 | ydb-platform/ydb | C++ | ★ 4.8K | Compare ↗ |
| #3,044 | microsoft/PyRIT | Python | ★ 4.8K | Compare ↗ |
| #3,046 | kotest/kotest | Kotlin | ★ 4.8K | Compare ↗ |
| #3,047 | formkit/formkit | TypeScript | ★ 4.8K | Compare ↗ |
| #3,048 | inkeep/open-knowledge | TypeScript | ★ 4.8K | Compare ↗ |
| #3,049 | Cysharp/MemoryPack This Project | C# | ★ 4.8K | |
| #3,050 | autobrr/qui | Go | ★ 4.8K | Compare ↗ |
| #3,051 | microsoft/perfview | C# | ★ 4.8K | Compare ↗ |
| #3,052 | infiniflow/infinity | C++ | ★ 4.8K | Compare ↗ |
| #3,053 | doctrine/migrations | PHP | ★ 4.8K | Compare ↗ |
| #3,053 | hyperlight-dev/hyperlight | Rust | ★ 4.8K | Compare ↗ |
Frequently Asked Questions
What does MemoryPack do? +
Zero encoding extreme performance binary serializer for C# and Unity.
Is MemoryPack actively maintained in 2026? +
Yes, MemoryPack is actively maintained. The latest code push was recorded on Nov 11, 2026 (1 days ago). It holds a calculated Maintenance Health Score of 97/100 (A+ rating) with 4,776 stars and 34 open issues.
What language is MemoryPack written in? +
The primary language is C#. Topics include: software.
How many stars does MemoryPack have? +
MemoryPack has 4,776 stars and 325 forks on GitHub.
How does MemoryPack rank among GitHub repositories? +
With 4,776 stars, Cysharp/MemoryPack is ranked #3,049 globally across all repositories tracked on GitHubRepo and #128 among C# projects.
What license is MemoryPack distributed under? +
The repository reports a MIT license. Always verify the repository LICENSE file for legal terms.
