Artillery vs Fortio

Artillery combines load testing, scalable Playwright end-to-end testing, and production monitoring in one toolkit. It supports load, stress, and soak tests, including distributed runs across AWS Lambda, AWS Fargate, and Azure Container Instances. HTTP, WebSocket, and Socket.IO are built in, with other protocols available through plugins. Playwright scripts can run as load tests or synthetic checks; the homepage also describes a Turbo runner beta for splitting large Playwright suites into parallel work. Listed integrations include Datadog, OpenTelemetry, New Relic, Splunk, Honeycomb, AWS CloudWatch, GitHub Actions, GitLab CI/CD, Jenkins, CircleCI, and Azure DevOps. Artillery says its typical users include application developers, test and QA engineers, and operations or SRE teams responsible for production backend systems. Cloud reporting is opt-in per test run, while tests run in the user's own environment even when reports are sent to Artillery Cloud. The Free plan lists 30 reports per month; Team costs $199 a month and includes 1,000 reports per month. Continued overages may degrade service or lead to read-only mode.

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.