Fortio vs LoadView

Fortio is a free, open-source Go project for HTTP and gRPC load testing. It combines a load-testing library, command-line tool, echo server, and web interface, with API, Linux, macOS, self-hosted, web, and Windows platforms. A run can target a specified queries-per-second rate or maximum speed, and can stop after a duration, a fixed call count, or interruption. Fortio records latency histograms and percentiles such as p99. Its server offers a web UI and REST API for starting tests and viewing latency and comparison graphs. Additional server functions include request echo, probabilistic latency or error injection, TCP echo and proxy, HTTP fan-out proxy, and gRPC echo and health. Go applications can embed Fortio or use its log, stats, and fhttp components separately. Fortiotel adds OpenTelemetry hooks. Fortio Proxy can provide HTTPS with automatic certificates and multiplex gRPC and HTTP behind one port. Installation options include Docker, Go, binaries, Homebrew, and a Windows ZIP.

LoadView provides cloud-based load testing for websites, web applications and APIs, with tests running in real browsers such as Chrome and Firefox. Its EveryStep Web Recorder supports point-and-click script creation across more than 40 desktop and mobile browsers and devices. Traffic scenarios can use Load Step, Goal-based or Dynamic Adjustable curves. Load injectors operate in more than 40 zones across the United States, Canada, South America, Europe and APAC. Real-time reports show execution plans, average response times and errors, while waterfall charts break down page elements. The product describes CI/CD integrations for Azure DevOps, Jenkins and CircleCI. For private-network tests, its On-Prem Load Injector creates load inside an organization’s network and sends results to LoadView for online reporting; the organization controls the local hardware, software, configurations and security measures. A free On-Demand plan is available for single tests, while paid plans target teams with ongoing testing needs. The pricing note says From $129/mo (annual). Individual tests have a four-hour maximum, and support is available 24/7 by phone, email or chat.