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testcritic

OpenText LoadRunner vs autocannon

Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.

Entry price

Quote on request

Quote only

Free and open source

Open source

What drives the bill

The metric that actually scales your invoice.

Licensed by peak virtual users with protocol bundles priced separately. Historically among the most expensive tools in testing.

Free and open source. You pay in engineering time and CI minutes.

Free tier

Community edition with a 50-virtual-user limit.

Everything, self-hosted

Open source

MIT

Self-hostable

No-code authoring

Languages

C#JavaJavaScriptCodeless
JavaScript

Platforms

APIWebSAPMainframeDesktopiOSAndroid
API

Fits teams

Enterprise
Solo / side projectStartup

Adoption

Established

OpenText · since 1993

Established

OSS community · since 2016

Strengths

  • The broadest protocol coverage available anywhere.
  • Extremely mature analysis and correlation tooling.
  • Accepted by enterprise architecture and audit functions without argument.
  • Zero configuration; useful output in seconds.
  • Good percentile reporting for such a small tool.
  • Scriptable from Node for micro-benchmarks in CI.

Limitations

  • Very expensive, and the protocol-bundle licensing model is hard to predict.
  • Dated tooling and a steep learning curve; specialists are a distinct job role.
  • Poor fit for continuous, developer-run performance testing.
  • Single endpoint only — no user journeys, no correlation, no think time.
  • No distributed execution.
  • HTTP/1.1 focused.

Best for

Large enterprises with legacy protocol requirements and an existing performance-engineering team.

Quick endpoint benchmarks and micro-optimisation work.

Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.