Alternatives

Products that do what Mockas does

Powerful tool for mocking API responses & testing edge cases

1. 1MO
   Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

   2019 · mockit.netlify.com

2. 2
   Mock Maker▲93

   Effortless mock APIs for seamless testing & prototyping

   2024

3. 3NW
   New way to test APIs with OpenAPI and Postman▲80

   2021 · github.com

4. 4
   Sparrow▲331

   The Open Source API Testing Tool For All Developers

   2024

5. 5
   Mock API Generator▲548

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

   2021

6. 6
   Mocke▲539

   Mock email campaigns: know your reply rate without launching

   2025 · mocke.co

7. 7
   Mocklets▲82

   A HTTP-based API simulator to assist parallel development 🛠️

   2018

8. 8
   Mocktotype▲149

   A simple tool to display your mockups in a browser

   2015

9. 9
   Mock-API▲5

   Simplifying API Mocking for Seamless Development Experiences

   2024

10. 10
    Reffresh▲91

    Simple, no code, mock APIs

    2024

11. 11
    API Tester▲209

    The easiest way to test APIs

    2017

12. 12ST
    Simple tool to generate mock APIs for testing▲25

    2024 · endpts.io

13. 13
    MockingBot▲82

    A rapid prototyping, design collaboration and handoff tool

    2018

14. 14
    Mock Studio▲3

    A simple yet powerful AI Powered HTTP API mocking tool

    Feb 2026 · mockstudio.app

15. 15
    ApiHome▲73

    Home of API testing

    2022

16. 16
    Mocktail – Free, open-source mock API server with a built-in dashboard▲25

    Hi HN, I built the first version of Mocktail years ago. I recently came back to the project, and after a pretty substantial rebuild, v4 is now out. Mocktail is a free and open-source, self-hosted mock API server with a built-in dashboard and database, packaged as a single ~25 MB binary. You can run it locally or on your own infrastructure — no account or hosted service required. You can define endpoints and responses, generate realistic data per request, customize headers, status codes and latency, and inspect incoming requests in real time. With v4, I also added MCP support, so coding…

    24d ago · getmocktail.com

17. 17
    Mocka▲3

    Instant Mock APIs for Devs, No JSON Required!

    2025

18. 18
    Karate▲89

    Web-services testing made simple 🥋

    2018

19. 19OM
    OpenAPI mocks that don't suck – realistic test data, quick setup▲13

    Hi HN! I'm Ankit, the founder of Beeceptor, a request mocking and intercepting tool. This time, I built something new to address a pain I’ve personally felt (and heard from dozens of QA, frontend, and platform teams): making OpenAPI specs actually useful during development. API contracts just sit around as docs often. What if you could 'activate' them, instantly have a realistic, hosted mock server-with contract validation, smart test data, and early usage? So I made _Mockaroo for OpenAPI_, but with brains. It spins up a hosted mock server from your spec in one click. It: - Generates…

    2025 · beeceptor.com

20. 20
    Karate Labs▲115

    Open-source platform unifying API & UI test automation

    2023

21. 21
    ezyMock▲81

    Mocking API endpoints has never been easier

    2017

22. 22
    Platapi▲108

    Convert OpenAPI docs to working dynamic mock endpoints

    2024

23. 23MM
    Mockoon – mock REST APIs in seconds▲68

    2017 · mockoon.com

24. 24WA
    Web App for generating mocked data from an OpenAPI specification▲19

    2020 · github.com

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