Dev tools · alternatives · 2026

24 alternatives to JSON.is

Open-source documentation for common JSON formats.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. JSON.is launched in 2015; newer entries below may have overtaken it.

1. 1JI
   JSON.is▲100

   2016 · json.is · its alternatives →

2. 2TW
   This website is valid JSON▲604

   2020 · webdatarender.com · its alternatives →

3. 3
   OK JSON▲113

   Format and view JSON with native Mac app

   2021 · okjson.app · its alternatives →

4. 4PJ
   package.json.is▲15

   2015 · package.json.is · its alternatives →

5. 5
   JSON Resume▲109

   A JSON-based standard for resumes

   2014 · jsonresume.org · its alternatives →

6. 6
   JSON Api▲175

   Hosted API's to develop your app for free 🙌

   2020 · jsonapi.co · its alternatives →

7. 7
   JSON5 — modern JSON▲64

   JSON5 — JSON for Humans. Contribute to json5/json5 development by creating an account on GitHub.

   2012 · github.com · its alternatives →

8. 8
   OK JSON▲104

   The ultimate JSON formatter for your Mac

   2023 · okjson.app · its alternatives →

9. 9
   JSONverify▲92

   A web tool that validates and format JSON objects

   2021 · jsonverify.com · its alternatives →

10. 10
    JSON Master▲82

    Format, repair, convert, and visualize JSON, XML, YAML, CSV, and TOML. Free developer platform with advanced visualizers and AI-powered syntax repair.

    2020 · jsonmaster.com · its alternatives →

11. 11
    The Changelog - #189: JSON API with Yehuda Katz▲66

    Yehuda's start as a programmer and the spec for building API

    2016 · changelog.com · its alternatives →

12. 12
    JSON Parser▲8

    Awesome way to view JSON.

    2018 · jsonformatter.org · its alternatives →

13. 13JA
    JSONScript – Asynchronous scripting language using JSON format▲49

    2016 · json-script.com · its alternatives →

14. 14
    JSON Formatter▲5

    Free online tool to edit, view, and format JSON

    2017 · its alternatives →

15. 15
    JSON Viewer▲8

    Bells and Whistles for JSON

    2016 · codebeautify.org · its alternatives →

16. 16
    Online JSON Formatter Tool▲12

    json formatter online, online json tool, format json

    2025 · its alternatives →

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

    2024 · prakhar897.github.io · its alternatives →

18. 18
    Online JSON Viewer▲7

    Web based online JSON Viewer

    2016 · jsonviewer.stack.hu · its alternatives →

19. 19
    JSON Swiss▲13

    Free Swiss Army Knife for JSON Data

    2025 · its alternatives →

20. 20
    Hjson▲17

    The Human JSON

    2016 · theblinkdate.com · its alternatives →

21. 21
    JSON Editor & Analyzer▲5

    JSON made simple, powered by AI

    Jan 2026 · json-analyzer.netlify.app · its alternatives →

22. 22
    JSONT▲5

    A simple online JSON format and validate tool.

    2022 · jsont.run · its alternatives →

23. 23
    JSON Utils▲6

    Free online json formatter, validator & editor tool

    2025 · onlinejsonutils.com · its alternatives →

24. 24
    JSON Editor Online▲3

    A web-based tool to view, edit, and format JSON.

    2015 · jsoneditoronline.org · 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 →