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k6

186
210
+ 1
56
Locust

166
307
+ 1
51
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Locust vs k6: What are the differences?

Locust: Define user behaviour with Python code, and swarm your system with millions of simultaneous users. Locust is an easy-to-use, distributed, user load testing tool. Intended for load testing web sites (or other systems) and figuring out how many concurrent users a system can handle; k6: Developer centric open-source load and performance testing tool. It is a developer centric open source load testing tool for testing the performance of your backend infrastructure. It’s built with Go and JavaScript to integrate well into your development workflow.

Locust and k6 belong to "Load and Performance Testing" category of the tech stack.

Some of the features offered by Locust are:

  • Define user behaviour in code
  • Distributed & scalable
  • Proven & battle tested

On the other hand, k6 provides the following key features:

  • Written in Go and JavaScript, built to integrate well into the modern developer workflow and automation pipelines
  • Primarily for load testing, it also works for functional testing of APIs and microservices with its powerful JS ES6 based scripting API
  • Straightforward CLI, sharing many UX aspects with the DevOps tools you already use

Locust and k6 are both open source tools. Locust with 11.2K GitHub stars and 1.62K forks on GitHub appears to be more popular than k6 with 5.57K GitHub stars and 287 GitHub forks.

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Pros of k6
Pros of Locust
  • 13
    Fits nicely in a CI workflow
  • 11
    It's code-first
  • 11
    Test scripts are written in javascript
  • 11
    Open-source
  • 10
    Easy to use
  • 15
    Hackable
  • 11
    Supports distributed
  • 7
    Open source
  • 6
    Easy to use
  • 6
    Easy to setup
  • 4
    Fast
  • 2
    Test Anything

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Cons of k6
Cons of Locust
  • 3
    Requires bundling and transpiling to use npm packages
  • 1
    Bad design

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- No public GitHub repository available -

What is k6?

It is a developer centric open source load testing tool for testing the performance of your backend infrastructure. It’s built with Go and JavaScript to integrate well into your development workflow.

What is Locust?

Locust is an easy-to-use, distributed, user load testing tool. Intended for load testing web sites (or other systems) and figuring out how many concurrent users a system can handle.

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What companies use k6?
What companies use Locust?
See which teams inside your own company are using k6 or Locust.
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What tools integrate with k6?
What tools integrate with Locust?

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What are some alternatives to k6 and Locust?
Gatling
Gatling is a highly capable load testing tool. It is designed for ease of use, maintainability and high performance. Out of the box, Gatling comes with excellent support of the HTTP protocol that makes it a tool of choice for load testing any HTTP server. As the core engine is actually protocol agnostic, it is perfectly possible to implement support for other protocols. For example, Gatling currently also ships JMS support.
Wrk
It is a hiring platform that provides an affordable way for small businesses to get a handle on their hiring process—a seamless set of features to create custom job posts and application forms, manage incoming candidates, and document the entire journey.
Apache JMeter
It is open source software, a 100% pure Java application designed to load test functional behavior and measure performance. It was originally designed for testing Web Applications but has since expanded to other test functions.
AWS Device Farm
Run tests across a large selection of physical devices in parallel from various manufacturers with varying hardware, OS versions and form factors.
Loader.io
Loader.io is a free load testing service that allows you to stress test your web-apps/apis with thousands of concurrent connections.
See all alternatives