Dev tools · alternatives · 2026

24 alternatives to API Testing

testing

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. API Testing launched in 2024; newer entries below may have overtaken it.

1. 1
   API Tester▲209

   The easiest way to test APIs

   2017 · its alternatives →

2. 2
   API_TESTER▲249

   Test your APIs right from the macOS menu bar

   2025 · apps.apple.com · its alternatives →

3. 3
   HTTPie for Terminal 2.6.0▲119

   Making APIs simple and intuitive for makers around the world

   2021 · httpie.io · its alternatives →

4. 4
   HTTP Mock – Intercept, debug and mock HTTP(S) with zero setup▲341

   Beautiful, cross-platform & open-source tools for debugging, testing and building with HTTP(S), on Windows, Linux & Mac.

   2019 · httptoolkit.tech · its alternatives →

5. 5
   New way to test APIs with OpenAPI and Postman▲80

   Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽‍🚀 - apideck-libraries/portman

   2021 · github.com · its alternatives →

6. 6
   Apimint▲170

   Design and Mock API + code SDK + Auto Documentation

   2016 · apimint.com · its alternatives →

7. 7
   TestLeft▲82

   Automate UI tests for web and desktop apps from any IDE

   2018 · smartbear.com · its alternatives →

8. 8MO
   Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

   2019 · mockit.netlify.com · its alternatives →

9. 9
   Expect▲109

   Let agents test your code in a real browser

   Mar 2026 · expect.dev · its alternatives →

10. 10
    ApiHome▲73

    Home of API testing

    2022 · apihome.io · its alternatives →

11. 11
    TestMace▲136

    Work with an API and create automated tests without coding

    2019 · testmace.com · its alternatives →

12. 12
    AbTest.io▲122

    A free url shortener with A/B testing features

    2017 · cbsplit.com · its alternatives →

13. 13
    Akto's Test Editor▲143

    Your playground for writing custom API security tests

    2023 · akto.io · its alternatives →

14. 14
    Open-source cypress for back end testing▲22

    For the past few months we’ve been building a simple jest/typescript-based high-level language for writing and running integration tests. We're open-sourcing it now and are excited to share it with you: https://github.com/traceloop/jest-opentelemetry Why we built this: - There are many solid frameworks for FE / browser testing, but none with high-level constructs for testing BE flows - We were missing a way to validate side effects for complex backend systems, especially across async queueing systems Our beta version lets you send an API call to a system and…

    2023 · github.com · its alternatives →

15. 15
    Reffresh▲91

    Simple, no code, mock APIs

    2024 · reffresh.com · its alternatives →

16. 16
    Atomus▲68

    A utility library for testing client-side code in Node.js

    2014 · github.com · its alternatives →

17. 17
    Express-inspired testing library for React▲5

    Chainable, easy to read, React testing library. Contribute to Legitcode/tests development by creating an account on GitHub.

    2015 · github.com · its alternatives →

18. 18
    apiJest▲2

    API testing services

    2023 · its alternatives →

19. 19
    Master Dev API▲6

    Debug test & optimize your code instantly – all in one API🚀

    2025 · mimi800-debug.github.io · its alternatives →

20. 20AT
    APId – the API end to end testing framework has gone open source▲11

    2020 · getapid.com · its alternatives →

21. 21
    Mini API Test▲14

    Chrome web store

    2025 · chromewebstore.google.com · its alternatives →

22. 22
    I open sourced the CLI of my API Testing Framework▲16

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

    2023 · github.com · its alternatives →

23. 23
    Rust built open-sourced CLI tool for API specification validation▲23

    Stop half-done APIs! Cherrybomb is a CLI tool that helps you avoid undefined user behaviour by auditing your API specifications, validating them and running API security tests. - blst-security/cherrybomb

    2022 · github.com · its alternatives →

24. 24ST
    Simple tool to generate mock APIs for testing▲25

    2024 · endpts.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 →