Alternatives

Products that do what JSONMocker – generate JSON mock data by writing reusable JSON schemas does

1. 1GJ
   Generate JSON mock data for testing/initial app development▲103

   2023 · jsongenerator.io

2. 2
   JSON Generator▲139

   Create mock and sample JSON using a powerful template syntax

   2014

3. 3JH
   JSONator – HTTP endpoints for mock data▲7

   2014 · jsonator.herokuapp.com

4. 4JM
   JSON5 — modern JSON▲64

   2012 · github.com

5. 5JA
   JsonTree, a 3.53kb JavaScript tool for generating html trees from JSON▲78

   2017 · maxleiter.github.io

6. 6JA
   JSONScript – Asynchronous scripting language using JSON format▲49

   2016 · json-script.com

7. 7JA
   Jason – A new JSON Library for Go▲106

   2014 · github.com

8. 8MM
   Mockoon – mock REST APIs in seconds▲68

   2017 · mockoon.com

9. 9CL
   Command-line JSON processing tool▲32

   2018 · github.com

10. 10JS
    JSON-Splora, a gui for editing, visualizing, and manipulating JSON data▲54

    2016 · github.com

11. 11
    Mock Data Generator▲4

    Paste real JSON, get 1,000 coherent rows that match it

    Jun 2026 · jsondevtools.org

12. 12HA
    hulk, an in-browser JSON editor▲25

    2013 · github.com

13. 13JA
    jsoncompat – a library to detect/fuzz breaking changes in JSON schemas▲7

    Apr 2026 · jsoncompat.com

14. 14GJ
    Generate JSON Schema from a JSON Object▲5

    2015 · github.com

15. 15JT
    JSON-to-JSON mapping done easily▲14

    2019 · github.com

16. 16AS
    A Super Simple JSON CMS▲8

    2018 · medium.com

17. 17JA
    Jsn – A relaxed, user-friendly JSON-like data format▲18

    2019 · github.com

18. 18AE
    An extensible JSON viewer, editor, formatter, validator and more▲10

    2019 · github.com

19. 19JA
    JsonTree, a tool for turning JSON data into a collapsible html tree▲9

    2016 · github.com

20. 20JA
    Jibber – a seamless way to debug JSON on iOS▲14

    2015 · rebel.tools

21. 21WA
    Web App for generating mocked data from an OpenAPI specification▲19

    2020 · github.com

22. 22MC
    MockREST – Create REST APIs from Your JSON Content▲12

    2017 · mockrest.com

23. 23JA
    JSONPlus: a json parser with self reference and templating▲7

    2015 · github.com

24. 24RG
    Rapidmock – Generate a mock API in seconds▲7

    2022 · rapidmock.com

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