GNS3 vs OpenSpeedTest
GNS3
gns3.comOpenSpeedTest
openspeedtest.comSide by side
| Figure | GNS3 | OpenSpeedTest |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | Yes | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Network Testing Software | 8.1 (#9) | 7.9 (#14) |
| Integrations | GNS3 supports Docker instances, QEMU-based appliances, hypervisors including VMware, VirtualBox and Hyper-V, and connections to real networks. | The maker documents an embeddable iframe widget and Docker deployment; it does not list named third-party integrations on the pages opened. |
| Security | GNS3 documentation says a GNS3 server has no authentication enabled by default and should be restricted at the network level. | The maker describes the self-hosted Docker application as static HTML, CSS, and JavaScript files and provides instructions for enabling Let's Encrypt SSL. |
| Support | GNS3 points users to its documentation and community for help, questions, and bug reports. | The site provides a contact form and links to FAQs for support inquiries. |
| Who it is for | GNS3 is used for networking education and certification practice, proof of concepts, demonstrations, and interoperability testing. | The maker describes use for home networks, small offices, enterprise deployments, and teams testing their own infrastructure. |
Plans
In their own words
GNS3
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.
OpenSpeedTest
OpenSpeedTest is a free, browser-based HTML5 tool for measuring internet and network performance. It measures sustained download and upload speeds, latency, jitter, and connection stability; the maker says its adaptive test supports connections from 1 Mbps to 10 Gbps and beyond. The browser test runs without an app, plugin, Flash, or Java installation. A responsive widget can be embedded in a website or app. URL parameters can launch a test automatically, run continuous stress tests, choose download, upload, or ping measurements, and set ping samples or parallel connections. For self-hosting, Docker images and source code are available for home, office, cloud, and enterprise environments. The setup guide calls for a public IPv4 or IPv6 address, a domain that resolves to the server, and an email address for Let's Encrypt setup. OpenSpeedTest supports HTTP/1.1, HTTP/2, and HTTP/3. The maker says Firefox is not recommended for stress tests longer than 10 minutes or speeds above 2.5 Gbps. The tool has been available since 2011 and is described for home networks, small offices, enterprise deployments, and infrastructure testing.