Dev tools · alternatives · 2026

24 alternatives to Rapidmock

Generate a mock API in seconds.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Rapidmock launched in 2022; newer entries below may have overtaken it.

1. 1
   Mock API Generator▲555

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

   2021 · retool.com · its alternatives →

2. 2RG
   Rapidmock – Generate a mock API in seconds▲7

   2022 · rapidmock.com · its alternatives →

3. 3
   Postkit 2.0▲129

   Codepen for mock APIs

   2019 · its alternatives →

4. 4
   Mockable▲114

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

   2015 · its alternatives →

5. 5
   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 →

6. 6
   Mock Maker▲93

   Effortless mock APIs for seamless testing & prototyping

   2024 · its alternatives →

7. 7
   UI Generator▲285

   Get mockup UI in seconds

   2022 · uigenerator.org · its alternatives →

8. 8
   API Fast Mock▲6

   Stateless API mocks in seconds, powered by tokens.

   2025 · apifastmock.com · its alternatives →

9. 9
   QuickMock▲7

   Mock websites instantly with AI — no coding needed.

   2025 · quickmock.replit.app · its alternatives →

10. 10
    MockFast.io▲4

    Mock as a service

    2025 · its alternatives →

11. 11
    Mockadillo▲115

    Mock your entire API in minutes.

    2019 · mockadillo.com · its alternatives →

12. 12
    MockAPI▲4

    Instant API Mocking for Faster Development

    2024 · its alternatives →

13. 13
    Mockoon▲89

    Mock servers in seconds

    2017 · mockoon.com · its alternatives →

14. 14
    MockREST – Create REST APIs from Your JSON Content▲12

    Mock REST endpoints in seconds. Test without backend delays. Built for developers who need reliable mock data now.

    2017 · mockrest.com · its alternatives →

15. 15GJ
    Generate JSON mock data for testing/initial app development▲103

    Easily create complex JSON data structures using intuitive templates.

    2023 · jsongenerator.io · its alternatives →

16. 16MO
    Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

    2019 · mockit.netlify.com · its alternatives →

17. 17
    APImocka▲6

    Create a hosted hackable mock API backend in seconds

    2018 · its alternatives →

18. 18
    MockAPI Dog▲122

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

    Feb 2026 · mockapi.dog · its alternatives →

19. 19
    MockCraft▲2

    Turn real API calls into smart mock endpoints

    Apr 2026 · mock-craft.com · its alternatives →

20. 20
    Mocka▲3

    Instant Mock APIs for Devs, No JSON Required!

    2025 · mocka.ouim.me · its alternatives →

21. 21
    Mockden▲12

    Rapid api prototyping & mock data

    2025 · its alternatives →

22. 22
    Mock Magic Studio▲98

    Create device mockups in seconds

    2023 · studio.mockmagic.com · its alternatives →

23. 23
    AI-Powered Mock API Generator▲86

    Generate customized, realistic mock data & APIs, via GPT

    2023 · its alternatives →

24. 24
    Mockify

    Instant mock APIs for fast frontend development

    Mar 2026 · mockify.buildtech.app · 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 →