Dev tools · alternatives · 2026

24 alternatives to k6

Open source load testing tool and SaaS

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. k6 launched in 2020; newer entries below may have overtaken it.

1. 1
   LoadLynx▲14

   SaaS Testing Boilerplate

   2024 · its alternatives →

2. 2KD
   K6 – developer-centric load testing using Go and JavaScript▲101

   2017 · k6.io · its alternatives →

3. 3
   Komiser▲386

   Open-source cloud environment inspector

   2023 · komiser.io · its alternatives →

4. 4
   Clobbr▲443

   Easy API endpoint load testing without breaking the bank

   2023 · clobbr.app · its alternatives →

5. 5
   TestFirst▲88

   Free, cloud-based test management system

   2023 · testfirst.com · its alternatives →

6. 6OS
   Open-source A/B testing framework▲199

   2021 · github.com · its alternatives →

7. 7
   Loader.io▲117

   Simple cloud-based load testing for your apps

   2014 · its alternatives →

8. 8
   Serverless 1.37▲330

   Toolkit for building serverless applications

   2019 · its alternatives →

9. 9
   Bucket DX▲294

   Feature flags to go fast with CLI, Toolbar, Event log & more

   2025 · reflag.com · its alternatives →

10. 10
    KloudMate▲279

    AWS serverless monitoring, designed for developers

    2023 · kloudmate.com · its alternatives →

11. 11
    Keploy▲68

    Open-source no-code API & unit testing platform

    2022 · its alternatives →

12. 12
    Load-test.io▲99

    Website load testing made easy

    2021 · its alternatives →

13. 13
    Signadot▲187

    Test environments built for Kubernetes

    2022 · signadot.com · its alternatives →

14. 14
    Multiple▲117

    Load Testing Built for Developers

    2023 · its alternatives →

15. 15
    Kops.dev▲106

    A tool to automate multicloud infrastructure

    2024 · its alternatives →

16. 16
    Loadero▲68

    Load and performance test solution for web based solutions

    2023 · loadero.com · its alternatives →

17. 17LA
    Loadjitsu – a modern load testing alternative to JMeter▲67

    Please meet Loadjitsu, my weekend project, years in the making. Over the years while building different apps and sites, I always felt that I need a modern load testing software.Tools like JMeter, ab are not very easy to use and it seems innovation in load testing which is a crucial part of any software release cycle has been ignored. This is my third attempt at making Loadjitsu, I am so glad that I can finaly release this. A bit more about the software 1. Powered by golang you can run load tests for tens of thousands of connections per second on very average hardware. 2. Cross platform, run…

    2022 · loadjitsu.com · its alternatives →

18. 18
    F19n Obtrusive Livetest▲82

    Frontend Performance Analysis Tool for Chrome

    2018 · its alternatives →

19. 19RG
    Run globally distributed full-stack apps on high-performance MicroVMs▲98

    Hi HN! We’re Yann, Edouard, and Bastien from Koyeb (https://www.koyeb.com/). We’re building a platform to let you deploy full-stack apps on high-performance hardware around the world, with zero configuration. We provide a “global serverless feeling”, without the hassle of re-writing all your apps or managing k8s complexity [1]. We built Scaleway, a cloud service provider where we designed ARM servers and provided them as cloud servers. During our time there, we saw customers struggle with the same issues while trying to deploy full-stack applications and APIs resiliently. As…

    2023 · koyeb.com · its alternatives →

20. 20
    CloudQA 2.0▲75

    Codeless & reliable web test automation tool

    2017 · its alternatives →

21. 21
    Loadsy▲10

    Performance Testing Tool for Any Type of Platform

    2021 · its alternatives →

22. 22KK
    Krucible – Kubernetes clusters for testing and development▲59

    2020 · usekrucible.com · its alternatives →

23. 23BL
    Broker-less simulation and mocking for Kafka▲36

    2019 · github.com · its alternatives →

24. 24
    LPS Tool▲2

    Load, performance & stress testing

    Oct 2025 · lpsload.io · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →