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Top 23 Java Networking Projects
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Project mention: Standing on shoulders: the stack that makes Floci start in ~24ms | dev.to | 2026-05-21
Netty has been around since 2004. If you've used Elasticsearch, Cassandra, gRPC-Java, Pulsar, Spark, the AWS SDK v2 async client, or Spring WebFlux (via Reactor Netty), you've used Netty. Every TCP connection into Floci, every UDP datagram, every connection to a spawned RDS container terminates in a Netty channel pipeline somewhere.
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Project mention: Xpipe: Access your server infrastructure from your local desktop | news.ycombinator.com | 2026-01-08
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It's not enabled by default, but you can --- gRPC Reflection:
* https://github.com/grpc/grpc-java/blob/master/documentation/...
* https://grpc.io/docs/guides/reflection/
You can then use generic tools like grpc_cli or grpcurl to list available services and methods, and call them.
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JeroMQ
JeroMQ is a pure Java implementation of the ZeroMQ messaging library, offering high-performance asynchronous messaging for distributed or concurrent applications.
dartzmq: an implementation of zeromq in Dart.
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ezyfox-server
A socket server (include SSL) supports realtime application, realtime game, MMORPG, messaging, chat and streaming data with TCP, UDP and Websocket
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Drift
An annotation-based Java library for creating Thrift serializable types and services. (by airlift)
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gophie
Gophie is a modern, graphical and cross-platform client or browser for "The Internet Gopher" also known as the Gopher protocol. Gophie supports browsing gopher pages, using search engines such as Veronica-2, displaying images and downloading files.
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TLS Channel
A Java library that implements a ByteChannel interface over SSLEngine, enabling easy-to-use (socket-like) TLS for Java applications.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
Java Networking discussion
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Using LLM in Access Management with OpenAM and Spring AI as an example
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I Use Zip Bombs to Protect My Server
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mina-sshd VS sshj - a user suggested alternative
2 projects | 1 Mar 2025 -
Dubbo: A Robust Java RPC and Microservice Framework
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Reactor Netty: UDP DNS client example
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A note from our sponsor - SaaSHub
www.saashub.com | 12 Jun 2026
Index
What are some of the best open-source Networking projects in Java? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | Dubbo | 41,518 |
| 2 | Netty | 34,972 |
| 3 | xpipe | 14,184 |
| 4 | gRPC | 12,027 |
| 5 | Async Http Client | 6,393 |
| 6 | AndroidNetworking | 5,905 |
| 7 | Undertow | 3,748 |
| 8 | sshj | 2,646 |
| 9 | JeroMQ | 2,444 |
| 10 | KryoNet | 1,854 |
| 11 | ServiceTalk | 1,022 |
| 12 | MINA | 925 |
| 13 | ezyfox-server | 686 |
| 14 | Comsat | 595 |
| 15 | react-native-tcp-socket | 389 |
| 16 | Riptide | 339 |
| 17 | NFS4J | 266 |
| 18 | Drift | 247 |
| 19 | rawhttp | 216 |
| 20 | gophie | 212 |
| 21 | TLS Channel | 208 |
| 22 | glassfish-grizzly | 179 |
| 23 | fluency | 166 |
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