Hazel Networking review
A focused, low-level option for basic C# network communications.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Hazel Networking is a low-level, open-source C# library for connection-oriented, message-based communication. It is intended for developers who need a lightweight networking layer with support for TCP, UDP and reliable UDP, rather than a complete game networking service. A common interface across supported protocols makes it suitable for basic C# communications where transport flexibility and direct control matter.
The library's main strength is its focused protocol and connection model. It provides interchangeable protocol implementations, thread-safe operation, IPv4 and IPv6 support, and automatic connection traffic statistics. This gives developers a consistent interface while retaining access to multiple transport options. The published project can be built from its Visual Studio solution, and the original repository is distributed under the MIT License.
Hazel Networking is a practical fit for teams looking for an open-source foundation for basic C# network communications. Its scope is narrower than a broader game networking stack: the available product details cover transport and messaging capabilities, but do not establish game-specific services or wider platform support. The repository also states that this version is no longer supported and directs developers to a separate fork for the latest Hazel implementation. Choose it when a focused library suits the project; consider an alternative when ongoing support, game-specific features or broader ecosystem coverage are central requirements.
Hazel Networking pros and cons
- Where it wins
- Supports TCP, UDP and reliable UDP communication
- Thread-safe, message-based interface across protocols
- Includes IPv4, IPv6 and automatic traffic statistics
- Where it doesn't
- The published repository says this version is no longer supported
- Low-level library without verified game-specific services
- Limited platform breadth beyond its C# networking focus
Hazel Networking fact sheet, pricing and score →
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