Dev tools · alternatives · 2026

24 alternatives to MockPack

Offline-first mock data engine for developers.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

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

   2019 · mockit.netlify.com · its alternatives →

2. 2
   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 →

3. 3
   Mock Maker▲93

   Effortless mock APIs for seamless testing & prototyping

   2024 · its alternatives →

4. 4
   Mockaroo▲354

   A realistic data generator to test your app

   2015 · mockaroo.com · its alternatives →

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

   2018 · mocktastic.com · its alternatives →

6. 6
   MockingBot▲82

   A rapid prototyping, design collaboration and handoff tool

   2018 · its alternatives →

7. 7
   Mockoon▲89

   Mock servers in seconds

   2017 · mockoon.com · its alternatives →

8. 8
   Mocklets▲82

   A HTTP-based API simulator to assist parallel development 🛠️

   2018 · mocklets.com · its alternatives →

9. 9
   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 →

10. 10GJ
    Generate JSON mock data for testing/initial app development▲103

    Easily create complex JSON data structures using intuitive templates.

    2023 · jsongenerator.io · its alternatives →

11. 11
    JSON Generator▲139

    Create mock and sample JSON using a powerful template syntax

    2014 · json-generator.com · its alternatives →

12. 12
    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…

    Aug 2026 · getmocktail.com · its alternatives →

13. 13
    MockType.dev ▲2

    Instant JSON to Type, Schema & Model for 20+ languages.

    Apr 2026 · mocktype.netlify.app · its alternatives →

14. 14
    Pollux▲82

    Fake json data & json server mock API generator with JWT

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

15. 15
    Mock Turtle▲72

    GUI approach to generating realistic mock JSON data

    2022 · mockturtle.net · its alternatives →

16. 16
    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 →

17. 17
    Decoy▲99

    Decoy lets developers create mock services locally on macOS. Test webhooks, API wrappers, scrapers and more. No Docker, no Electron, just a beautiful 10 MB native app.

    Mar 2026 · decoy-app.com · its alternatives →

18. 18
    MockRTC – a mock peer and MitM proxy library for WebRTC▲30

    Powerful friendly WebRTC mock peer & proxy. Contribute to httptoolkit/mockrtc development by creating an account on GitHub.

    2022 · github.com · its alternatives →

19. 19
    Mockreate▲66

    Figma plugin to generate & customise random data for designs

    2022 · figma.com · its alternatives →

20. 20
    Mocklets v2.0▲7

    Api management and testing platform for remote teams.

    2020 · mocklets.com · its alternatives →

21. 21
    MockupTiger Wireframes▲72

    We recently added AI workflow to our drag and drop Wireframe editor. It is mainly for low fidelity wireframe generation

    2018 · wireframes.org · its alternatives →

22. 22CM
    Creating mock data using TypeScript interfaces▲57

    2023 · butlermock.online · its alternatives →

23. 23
    MockIPFS – a mock node and MitM proxy for IPFS testing and debugging▲29

    Powerful friendly IPFS mock node & proxy. Contribute to httptoolkit/mockipfs development by creating an account on GitHub.

    2022 · github.com · its alternatives →

24. 24
    MockLock▲15

    The comprehensive platform for developers.

    2025 · mocklock.vercel.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 →