Alternatives

Products that do what JSON Lego does

The JSON editor built for non-coders...

1. 1MA
   Make an app by adding JSON to this app▲648

   2016 · github.com

2. 2
   Editor.js▲726

   A block-styled editor with clean JSON output

   2019 · editorjs.io

3. 3
   Power JSON Editor▲77

   A one-stop-shop tool for JSON processing on Mac

   2022

4. 4
   JSON Formatter and Validator▲81

   Useful JSON online tools

   2022

5. 5JF
   JSON For You – Visualize JSON in graph or table views▲211

   After two years of improvement, I think it's time to share it with you all. Here’s a quick overview: - Common features include validation, formatting, minification, and more. - Visualize JSON in a graph or table view. - Structured comparison with fallback to text comparison. - Navigate though JSON using JSON pointer. - Supports jq. Would love to hear the community's questions, thoughts and comments!

   2024 · github.com

6. 6
   Structura▲100

   Visualize and edit JSON like Lego blocks

   Oct 2025

7. 7GJ
   Generate JSON mock data for testing/initial app development▲103

   2023 · jsongenerator.io

8. 8
   JSON Query▲152

   A tool to query JSON data structures

   2015

9. 9
   JSON Generator▲139

   Create mock and sample JSON using a powerful template syntax

   2014

10. 10
    OK JSON▲113

    Format and view JSON with native Mac app

    2021

11. 11
    JSONverify▲92

    A web tool that validates and format JSON objects

    2021

12. 12JQ
    JSON Query▲154

    I'm working on a tool that will probably involve querying JSON documents and I'm asking myself how to expose that functionality to my users. I like the power of `jq` and the fact that LLMs are proficient at it, but I find it right out impossible to come up with the right `jq` incantations myself. Has anyone here been in a similar situation? Which tool / language did you end up exposing to your users?

    Oct 2025 · jsonquerylang.org

13. 13JI
    JSON.is▲100

    2016 · json.is

14. 14
    OK JSON▲104

    The ultimate JSON formatter for your Mac

    2023

15. 15
    Monokai JSON+▲83

    Sublime Monokai Theme for JSON.

    2015

16. 16OJ
    Online JSON Browser, Editor▲20

    2022 · jsonhero.io

17. 17IM
    I made a tool which fixes broken JSONs▲29

    2024 · prakhar897.github.io

18. 18JM
    JSON5 — modern JSON▲64

    2012 · github.com

19. 19WA
    Wrote a JSON parser from scratch in go▲22

    First time ever working on something like this, check it out

    2024 · github.com

20. 20JS
    JSON-Splora, a gui for editing, visualizing, and manipulating JSON data▲54

    2016 · github.com

21. 21HA
    hulk, an in-browser JSON editor▲25

    2013 · github.com

22. 22WJ
    Weird JSON▲19

    2022 · github.com

23. 23
    JSON Editor & Validator▲2

    Edit, format, diff, and repair JSON — all in your browser.

    Jun 2026 · mzeeshan.me

24. 24JE
    JSON Editor for macOS▲5

    2022 · theapiscout.com

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