Vegeta vs OpenText LoadRunner

Free and open source

Quote on request

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

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

Everything, self-hosted

Community edition with a 50-virtual-user limit.

Established

OSS community · since 2013

Established

OpenText · since 1993

• Constant-rate model avoids the coordinated-omission problem that distorts VU-based tools.
• Single static binary, trivial to run anywhere.
• Composable output for scripting and pipelines.

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

• No scenarios or session state — one target list, one rate.
• No GUI or built-in reporting beyond plots.
• Go library usage required for anything sophisticated.

• 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.

Backend engineers who want rigorous constant-rate measurements of an endpoint.

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