OpenSpeedTest vs Ostinato

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.

Ostinato generates and customizes network traffic, or replays PCAP files, to help validate throughput, QoS, multicast, routing, switching, protocol behavior, and network performance. Users can edit supported protocol headers, set frame sizes, and create custom headers with hexdumps or scripts. PCAP replay can preserve or alter packet timing, loop traffic, or reorder packets. Native protocols include Ethernet, VLAN, QinQ, IPv4/IPv6, UDP, stateless TCP, ICMP, ARP/NDP, IGMP/MLD, and GRE; other methods can support headers such as MPLS and VXLAN. Reports show transmit and receive statistics, per-stream packet loss, and latency and jitter measured with software timestamps. A Python API supports stream and scenario creation, run control, counter collection, and CI/CD integration. Ostinato lists GNS3, EVE-NG, Cisco CML, and Containerlab as supported lab environments, and says it works on AWS and Azure cloud VMs. It runs on Linux, macOS, Windows, and self-hosted or API setups. Plans start at $12 a month billed annually; an active subscription is required.