Dev tools · alternatives · 2026

24 alternatives to JSON url

Mock backend with JSON generated from URL

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

1. 1
   Pollux▲82

   Fake json data & json server mock API generator with JWT

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

2. 2
   Mock Turtle▲72

   GUI approach to generating realistic mock JSON data

   2022 · mockturtle.net · its alternatives →

3. 3
   Mock API Generator▲555

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

   2021 · retool.com · its alternatives →

4. 4
   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 →

5. 5
   JSON Generator▲139

   Create mock and sample JSON using a powerful template syntax

   2014 · json-generator.com · its alternatives →

6. 6
   Mock API Generator▲17

   API Mocks Prototyping

   2020 · mock-api-builder.vercel.app · its alternatives →

7. 7
   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 →

8. 8
   fetchJSON▲8

   Rest api endpoint with custom randomly generated data

   2020 · fetchjson.com · its alternatives →

9. 9GJ
   Generate JSON mock data for testing/initial app development▲103

   Easily create complex JSON data structures using intuitive templates.

   2023 · jsongenerator.io · its alternatives →

10. 10
    FakeURL▲6

    Free online api mocking tool | mock api generator

    2025 · fakeurl.dev · its alternatives →

11. 11
    JSONing Mock API▲6

    Free and open source fake API for testing and prototyping

    Nov 2025 · jsoning.com · its alternatives →

12. 12
    Mockaroo▲354

    A realistic data generator to test your app

    2015 · mockaroo.com · its alternatives →

13. 13MO
    Mockit – Open-source app to create and configure HTTP mocked endpoints▲158

    2019 · mockit.netlify.com · its alternatives →

14. 14MS
    Mocktastic – Simple, Offline mock REST APIs for your entire team▲43

    2018 · mocktastic.com · its alternatives →

15. 15
    Requestly▲148

    Debug & Modify HTTP(s) Requests - loved by 125K+ web devs

    2019 · requestly.com · its alternatives →

16. 16
    HTTPretty, an easy way to mock http requests in python▲97

    Bid on the RGP-Domain falcao.it. Bid now from €10 and secure the domain at an early stage!

    2012 · falcao.it · its alternatives →

17. 17
    MockThis▲80

    Generate mock data using AI

    2023 · its alternatives →

18. 18
    miniBackend▲6

    Create GET, POST, DELETE and PUT REST APIs with a few clicks

    2019 · minibackend.com · its alternatives →

19. 19
    URL Parse API▲65

    Easily parse a URL into its components, by ex-Google

    2022 · urlparse.com · its alternatives →

20. 20
    JSONverify▲92

    A web tool that validates and format JSON objects

    2021 · jsonverify.com · its alternatives →

21. 21
    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 →

22. 22
    Fake.REST▲5

    Online JSON mock API server with dynamic response templates

    2019 · its alternatives →

23. 23
    Mockman▲6

    Custom AJAX response ( Postman for Frontend)

    2020 · chromewebstore.google.com · its alternatives →

24. 24
    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 →

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 →