Dev tools · alternatives · 2026

24 alternatives to Mockly

Effortless API mocking - dive in, build better

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Mockly launched in 2023; newer entries below may have overtaken it.

1. 1
   Mock Maker▲93

   Effortless mock APIs for seamless testing & prototyping

   2024 · its alternatives →

2. 2
   Mockly▲330

   Stunning ebook mockups in minutes

   2021 · mockly.xyz · its alternatives →

3. 3MO
   Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

   2019 · mockit.netlify.com · its alternatives →

4. 4
   Mock API Generator▲555

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

   2021 · retool.com · its alternatives →

5. 5MS
   Mocktastic – Simple, Offline mock REST APIs for your entire team▲43

   2018 · mocktastic.com · its alternatives →

6. 6
   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 →

7. 7
   MockingBot▲82

   A rapid prototyping, design collaboration and handoff tool

   2018 · its alternatives →

8. 8
   Mockaroo▲354

   A realistic data generator to test your app

   2015 · mockaroo.com · its alternatives →

9. 9
   Mock-API▲5

   Simplifying API Mocking for Seamless Development Experiences

   2024 · mock-api.net · its alternatives →

10. 10
    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 →

11. 11
    Mockable▲114

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

    2015 · its alternatives →

12. 12
    Mockoon▲89

    Mock servers in seconds

    2017 · mockoon.com · its alternatives →

13. 13
    Mockswitch▲67

    Stateful mock services, 10x faster

    2021 · its alternatives →

14. 14
    Mocky.io▲9

    Mock your HTTP responses to test your REST API

    2016 · its alternatives →

15. 15
    Mock Magic Studio▲98

    Create device mockups in seconds

    2023 · studio.mockmagic.com · its alternatives →

16. 16
    Mocklets▲82

    A HTTP-based API simulator to assist parallel development 🛠️

    2018 · mocklets.com · its alternatives →

17. 17
    Reffresh▲91

    Simple, no code, mock APIs

    2024 · reffresh.com · its alternatives →

18. 18
    Mockend▲6

    Effortless hosted fake REST and GraphQL API for teams/makers

    2023 · mockend.com · its alternatives →

19. 19
    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 →

20. 20
    MockWave - Free API mocking tool▲5

    Mockwave

    2025 · mockwave.io · its alternatives →

21. 21
    MockAnAPI▲21

    Your gateway to seamless API mocking and robust development

    2023 · angkajuditogelresmi.com · its alternatives →

22. 22
    MockAPI▲4

    Instant API Mocking for Faster Development

    2024 · its alternatives →

23. 23
    Mockly AI ▲16

    Master Your Interview Skills with AI

    2025 · its alternatives →

24. 24MM
    Mocksup, my mockup prototyping & review webapp▲95

    2010 · mocksup.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 →