What is LoadTester?

LoadTester is a web-based HTTP and API load testing tool that lets you run distributed load tests in seconds — directly from your browser or CI/CD pipeline. It handles the heavy lifting of worker scaling, infrastructure coordination, and execution flow, so you can focus on results instead of provisioning servers or maintaining a Grafana stack. With live streaming analytics, smart auto-stop thresholds, and run-to-run comparisons, LoadTester is built for teams that need reliable performance data without operational overhead.

Who it's for

• Developers who need to validate endpoint performance before shipping code to production.
• DevOps and SRE teams that want to catch latency regressions and error-rate spikes automatically in CI/CD.
• Engineering managers looking for a shareable, exportable test result format (PDF, CSV, JSON) to prove capacity before a launch.

Key features

Instant distributed execution

Start a load test in under 3 seconds with up to 10,000 virtual users and 10,000 requests per second. Workers auto-scale without any manual orchestration — you define the scenario, hit run, and LoadTester dispatches the load across multiple workers instantly.

Live streaming analytics

Watch throughput, latency (p50, p95, p99), active users, and errors update in real time during the run. No waiting five minutes for a report — the data streams as the test executes, so you can spot bottlenecks the moment they appear.

Smart auto-stop thresholds

Set p95 latency and error-rate limits that automatically stop the test when breached. This prevents runaway tests from wasting time or overwhelming your system, and it makes LoadTester safe to run unattended in CI/CD pipelines.

CI/CD integration and alerts

Trigger tests on every deploy, pull request, or release candidate using a simple API token. Webhooks, Slack, and email alerts notify your team on completion or regression, and scheduled baselines let you compare results over time.

What stands out

"No worker fleets to provision, no Grafana stack to maintain."

LoadTester removes the two biggest friction points in performance testing: infrastructure setup and toolchain complexity. You get distributed load testing with a cold start under 3 seconds, live streaming charts, and automated guardrails — all from a browser or a CI/CD command. There is no infrastructure to provision, no worker orchestration to script, and no separate monitoring stack to configure. The result is a tool that feels more like a SaaS dashboard than a traditional load testing framework.

Worth checking out if…

You need to run HTTP or API load tests quickly without managing servers, want real-time visibility into latency and errors, or need automated performance regression detection in your CI/CD pipeline. LoadTester is especially useful for teams that want shareable, exportable results (PDF, CSV, JSON) and scheduled baselines — all with a free plan to get started.