Alternatives

Products that do what Mocka does

Instant Mock APIs for Devs, No JSON Required!

1. 1
   Mock API Generator▲548

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

   2021

2. 2
   MockAPI Dog▲122

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

   Feb 2026 · mockapi.dog

3. 3
   Mock Maker▲93

   Effortless mock APIs for seamless testing & prototyping

   2024

4. 4
   Mockable▲114

   For rapid API prototyping: create REST/SOAP mocks in 3 sec

   2015

5. 5
   Mockadillo▲115

   Mock your entire API in minutes.

   2019

6. 6GJ
   Generate JSON mock data for testing/initial app development▲103

   2023 · jsongenerator.io

7. 7
   MockWave - Free API mocking tool▲5

   Mockwave

   2025

8. 8
   MockAPI▲4

   Instant API Mocking for Faster Development

   2024

9. 9
   JSONing Mock API▲6

   Free and open source fake API for testing and prototyping

   Nov 2025 · jsoning.com

10. 10MM
    Mockoon – mock REST APIs in seconds▲68

    2017 · mockoon.com

11. 11
    apiJuice▲223

    Create a hosted API for anything in seconds

    2025 · apijuice.com

12. 12
    Mockoon▲89

    Mock servers in seconds

    2017

13. 13
    Postkit 2.0▲129

    Codepen for mock APIs

    2019

14. 14
    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

15. 15
    Fake API for Devs▲8

    Free mock api generator for developers | instant test data

    Nov 2025 · fakeapifordevs.vercel.app

16. 16
    JSON url▲119

    Mock backend with JSON generated from URL

    2022

17. 17
    JSON Generator▲139

    Create mock and sample JSON using a powerful template syntax

    2014

18. 18
    API Fast Mock▲6

    Stateless API mocks in seconds, powered by tokens.

    Sep 2025 · apifastmock.com

19. 19
    Mockline▲5

    Instant Mock APIs from OpenAPI Specs

    Mar 2026 · mockline.xyz

20. 20
    Mocklets▲82

    A HTTP-based API simulator to assist parallel development 🛠️

    2018

21. 21
    Mockden▲12

    Rapid api prototyping & mock data

    2025

22. 22
    JSON Api▲175

    Hosted API's to develop your app for free 🙌

    2020

23. 23OM
    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

24. 24
    Reffresh▲91

    Simple, no code, mock APIs

    2024

Ranked by how close each launch is in meaning, then by votes. Refine with your own description →