Dev tools · alternatives · 2026

24 alternatives to Mokku: API Mocker

Mock API calls for seamless development and testing

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

1. 1
   Mockaroo▲354

   A realistic data generator to test your app

   2015 · mockaroo.com · its alternatives →

2. 2
   Mokkup▲323

   Stunning mock dashboard in minutes

   2023 · mokkup.ai · its alternatives →

3. 3
   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 →

4. 4
   Apidog▲570

   Development teams often struggle with using multiple tools like Postman and Swagger for API design, development, and testing. This fragmented approach leads to outdated API specs and chaotic collaboration. So we built Apidog: a single, unified API platform for team collaboration. It has a beautiful interface that makes it easy to create API spec, generate request data from API spec, validate responses, create mock data, orchestrate test scenarios, and publish API documentation. Apidog = Postman + Swagger + Mock + JMeter.

   2024 · apidog.com · its alternatives →

5. 5MO
   Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

   2019 · mockit.netlify.com · its alternatives →

6. 6
   Mock API Generator▲555

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

   2021 · retool.com · its alternatives →

7. 7
   Pollux▲82

   Fake json data & json server mock API generator with JWT

   2021 · mohammedal-rowad.github.io · its alternatives →

8. 8
   Mockoon – mock REST APIs in seconds▲68

   Mockoon is the easiest and quickest way to run mock REST API servers. No remote deployment, no account required, free, open source and cross-platform.

   2017 · mockoon.com · its alternatives →

9. 9
   Mock Maker▲93

   Effortless mock APIs for seamless testing & prototyping

   2024 · its alternatives →

10. 10
    Mock Studio▲3

    Hi HN, I built this after using Requestly, Mokku, Mockiato, Tweak, and Mockoon. Each one either paywalled the features I actually needed, required a separate server running on my machine, or just didn't fit the way I work. The browser is already open. DevTools is already open. I wanted the mocking to live there too, not in a separate app I have to remember to start. So roughly a month ago, I started building my own tools. It intercepts network requests at the browser level and lets you swap the response, status code, headers, body without touching your code or spinning up anything.…

    Feb 2026 · mockstudio.app · its alternatives →

11. 11
    MockAPI Dog▲122

    Instant mock REST & LLM APIs - free, no signup required

    Feb 2026 · mockapi.dog · its alternatives →

12. 12
    Mockoon▲89

    Mock servers in seconds

    2017 · mockoon.com · its alternatives →

13. 13
    Moto - Easy mocking of Boto for your Python AWS tests▲66

    A library that allows you to easily mock out tests based on AWS infrastructure. - getmoto/moto

    2013 · github.com · its alternatives →

14. 14MS
    Mocktastic – Simple, Offline mock REST APIs for your entire team▲43

    2018 · mocktastic.com · its alternatives →

15. 15
    Moqyy▲13

    Mock smarter. Intercept better.

    2025 · moqyy.com · its alternatives →

16. 16
    MockAnAPI▲21

    Your gateway to seamless API mocking and robust development

    2023 · angkajuditogelresmi.com · its alternatives →

17. 17
    Reffresh▲91

    Simple, no code, mock APIs

    2024 · reffresh.com · its alternatives →

18. 18
    StopLight▲137

    Mock, document, and test your way to API nirvana.

    2016 · stoplight.io · its alternatives →

19. 19
    Mokzu Chrome eXtension▲10

    Chrome extension that transforms design mocks into code

    2024 · chromewebstore.google.com · its alternatives →

20. 20
    Mocklets▲82

    A HTTP-based API simulator to assist parallel development 🛠️

    2018 · mocklets.com · its alternatives →

21. 21
    Meeshkan Recorder▲105

    The fastest way to write & manage UI tests

    2021 · chromewebstore.google.com · its alternatives →

22. 22
    Motty▲70

    Modern and simpler way to test client services

    2017 · scalalang2.com · its alternatives →

23. 23
    MockingBot▲82

    A rapid prototyping, design collaboration and handoff tool

    2018 · its alternatives →

24. 24
    Karate▲89

    Web-services testing made simple 🥋

    2018 · github.com · 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 →