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Dev tools · alternatives · 2026

24 alternatives to Auto-generate unit tests (with mock data) from API calls

Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing. - keploy/keploy

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Auto-generate unit tests (with mock data) from API calls launched in 2022; newer entries below may have overtaken it.

  1. 1
    Keploy▲68

    Open-source no-code API & unit testing platform

    2022 · github.com · its alternatives →

  2. 2

    Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing. - keploy/keploy

    2022 · github.com · its alternatives →

  3. 3

    Generate custom data & API to build apps in less than 30s

    2021 · retool.com · its alternatives →

  4. 4

    Fully automate software testing end-to-end using AI

    2024 · its alternatives →

  5. 5
    Mockaroo▲354

    A realistic data generator to test your app

    2015 · mockaroo.com · its alternatives →

  6. 6

    Open Source Feature Flags, Experimentation, and Product Analytics - growthbook/growthbook

    2021 · github.com · its alternatives →

  7. 7KI

    Hi HN, We're building Kexa.io (https://github.com/kexa-io/Kexa), an open-source tool developed in France (incubated at Euratech Cyber Campus) to help teams automate the often tedious process of verifying IT security and compliance. Keeping track of configurations across diverse assets (servers, K8s, cloud resources) and ensuring they meet security baselines (like CIS benchmarks, etc.) manually is challenging and error-prone. Our goal with the open-source core is to provide a straightforward way to define checks, scan your assets, and get clear reports on your security…

    2025 · its alternatives →

  8. 8

    Generate unit tests, create docs and refactor code using AI.

    2023 · refraction.dev · its alternatives →

  9. 9

    Hi, this is Mish and Sebastian. We are working on Step CI - a fully automated API testing platform for developers. Step CI works programming-language independent and for different API paradigms (REST, GraphQL, XML). Our CLI and test runner are available on GitHub (https://github.com/stepci) under the MPLv2 license. Since our last launch, Step CI is now able to generate automated tests for your API based on your OpenAPI (Swagger) spec. This saves you a lot of time as you never have to write and maintain your tests again! We would like to invite you to try our tool and give us…

    2022 · stepci.com · its alternatives →

  10. 10

    k6 is an open-source tool and cloud service that makes load testing easy for developers and QA engineers.

    2017 · k6.io · its alternatives →

  11. 11

    Open-source platform unifying API & UI test automation

    2023 · karatelabs.io · its alternatives →

  12. 12

    Your playground for writing custom API security tests

    2023 · akto.io · its alternatives →

  13. 13
    Karate▲89

    Web-services testing made simple 🥋

    2018 · github.com · its alternatives →

  14. 14
    Routebase▲106

    Design, mock, test, and document APIs from one living spec. Full test runner built in: suites, scenarios, ten auth schemes, CLI in CI. No OpenAPI needed.

    Jul 2026 · routebase.dev · its alternatives →

  15. 15

    Progressive Web App for generating mocked data from an OpenAPI specification - Fredx87/openapi-mock-generator

    2020 · github.com · its alternatives →

  16. 16

    Automate UI tests for web and desktop apps from any IDE

    2018 · smartbear.com · its alternatives →

  17. 17
    Garden▲95

    Automation platform for Kubernetes development & testing

    2020 · docs.garden.io · its alternatives →

  18. 18

    Generate customized, realistic mock data & APIs, via GPT

    2023 · its alternatives →

  19. 19

    Cloud native & Kubernetes testing done right

    2020 · docs.garden.io · its alternatives →

  20. 20
    FunTEST▲83

    Hardware test automation made simple

    2023 · funtestfpc.com · its alternatives →

  21. 21

    Open Source Feature Flags, Experimentation, and Product Analytics - growthbook/growthbook

    2021 · github.com · its alternatives →

  22. 22

    Create mock APIs in seconds with AI. Ship prototypes faster.

    Dec 2025 · mocknica.dev · its alternatives →

  23. 23

    The main repo for APITrakr, an API testing framework. - apitrakr/packages/cli at main · apitrakr/apitrakr

    2023 · github.com · its alternatives →

  24. 24

    Free mock api generator for developers | instant test data

    Nov 2025 · fakeapifordevs.vercel.app · its alternatives →

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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 →