OpenText LoadRunner vs Locust

Quote on request

Free and open source

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.

Community edition with a 50-virtual-user limit.

Everything, self-hosted

Established

OpenText · since 1993

Widely used

OSS community · since 2011

• The broadest protocol coverage available anywhere.
• Extremely mature analysis and correlation tooling.
• Accepted by enterprise architecture and audit functions without argument.

• Test scenarios are plain Python, so any logic is expressible without workarounds.
• Distributed mode is conceptually simple and works well on Kubernetes.
• Live web UI is useful during an exploratory ramp-up.

• 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.

• Python's per-user overhead is higher than k6 or Gatling; big loads need more machines.
• Reporting is basic — plan on exporting to Grafana.
• HTTP-centric; other protocols require writing your own client.

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

Python teams who want load scenarios expressed in their own language.