index.md

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Open Source Core Network Implementation

free5GC is a Linux Foundation project dedicated to implementing 3GPP Release 17 and beyond core networks

Quick Start How to Contribute

The 2nd free5GC World Forum

December 17-18, 2026 • Hsinchu, Taiwan

Learn More →

Your Roadmap to 5G Expertise Starts Here — And It’s Free!

Linux Foundation Education has launched Introduction to free5GC (LFS114), a free, self-paced course designed for developers, network engineers, and technologists who want to deepen their 5G expertise and work directly with modern 5G Core architecture. In just a few focused hours, you’ll learn how free5GC is built, how its core functions operate, and how to navigate and engage with the codebase — giving you a real advantage in today’s cloud native networking landscape.

For more details, please visit the Introduction to free5GC (LFS114).

Latest News: free5GC v4.3.0 Released!

Version 4.3.0 includes the following updates:

• Release of the SCP (Service Communication Proxy) network function
• Upgraded OpenAPI
• UPF N6 interface now supports specifying NAT routing in the configuration
• SMF updated to the latest PFCP package

For more details, please see the history page.

View Version History →

📱

Complete 5G Core Implementation

Compliant with 3GPP R15+ standards, providing comprehensive 5G core network functionalities

🌐

Service-Based Architecture

Built on Service-Based Architecture (SBA) for modular and scalable deployments

🚀

Containerized Deployment

Supports Kubernetes and Docker deployments, easily integrating with modern cloud-native environments

🔓

Open Source

Licensed under Apache 2.0, free for both commercial and non-commercial use with no restrictions

☁️

CNTi

K8s-helm infrastructure meets LFN-CNTi Certification requirements

The free5GC (a Linux Foundation project) is an open-source project for 5th generation (5G) mobile core networks. The ultimate goal of this project is to implement the 5G core network (5GC) defined in 3GPP Release 15 (R15) and beyond.

Currently, the major contributors are from National Yang Ming Chiao Tung University (NYCU{target=_blank}).

• The source code of the latest version of free5GC can be downloaded from here{target=_blank}.
• Information about TSC (Technical Steering Committee) can be found at free5gc/governance.
• Follow our LinkedIn{target=_blank} page to get the news about free5GC.
• Please refer to our roadmap for the features of each release.

Note

• The Linux Foundation announced that free5GC officially joined the Linux Foundation on September 16, 2024, during the Open Source Summit Europe in Vienna, Austria. Check out the press release here.
• Please check out the Google Scholar page here for publications using free5GC.

Connecting to the Future!

We remain committed to enhancing free5GC with new features, and we have a roadmap in place to support the following functionalities:

• CNTI CI
• Kaimilio

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