EVE-NG vs GNS3

EVE-NG is a clientless network emulation platform for network, security, and DevOps professionals. It is presented for building virtual proof-of-concept projects, solutions, and training environments for organizations, educators, individuals, and groups. A topology designer supports lab creation, configuration import and export, XML lab files, and picture or map imports. Running nodes can connect through hot links, including to real networks. Listed Professional features include KVM hardware acceleration, Docker and custom Docker support, and up to 1024 nodes per lab. Integrations include RADIUS and Microsoft Active Directory authentication, Docker-integrated Wireshark, and an integrated NAT cloud. Hosting options include Proxmox, VMware platforms, and Google Cloud platform VMs. The free plan allows 7 nodes per instance and 63 per lab, with the Admin role only. EVE-NG Base and RBL are priced on request; RBL supports multiple roles, with added roles priced separately. Community Edition support and end of life ended in June 2026.

GNS3 is free, open-source software for emulating, configuring, testing, and troubleshooting virtual and real networks. Its graphical client works with a virtual machine, and servers can run locally or remotely. Users can combine emulated devices running actual images with simulated devices, including a built-in layer 2 switch. It supports appliances from vendors such as Cisco, Brocade, Cumulus Linux, and HPE, as well as Docker, QEMU-based appliances, VMware, VirtualBox, Hyper-V, and connections to real networks. The GNS3 Marketplace offers preconfigured appliance templates with recommended settings. It runs on Windows, macOS, and Linux; documentation recommends the GNS3 VM for most Windows and macOS setups and complex topologies. Users must supply their own Cisco IOS images. There are no monthly or yearly license fees, and device capacity depends in practice on the host computer’s CPU and memory. GNS3 is used for networking education, certification practice, proofs of concept, demonstrations, and interoperability testing. A server has no authentication enabled by default and should be restricted at the network level.