Alternatives

Products that do what Pretty print invalid JSON (or anything that looks sort of like JSON) does

1. 1AS
   a small weekendish project - JSON Blob▲106

   2013 · jsonblob.com

2. 2JP
   JSON Pizza – Beautify your JSON quickly▲112

   2019 · json.pizza

3. 3JI
   JSON.is▲100

   2016 · json.is

4. 4
   JSONverify▲92

   A web tool that validates and format JSON objects

   2021

5. 5VJ
   Verify JSON using minimal schema▲91

   2020 · github.com

6. 6JM
   JSON5 — modern JSON▲64

   2012 · github.com

7. 7CL
   Command-line JSON processing tool▲32

   2018 · github.com

8. 8RJ
   Repair JSON▲7

   2021 · repair-json.vercel.app

9. 9WJ
   Weird JSON superset with BigInt, Infinity, TypedArray etc▲67

   2020 · github.com

10. 10
    Format JSON▲2

    Paste ugly, copy pretty

    May 2026 · format-json.net

11. 11IM
    I made a tool which fixes broken JSONs▲29

    2024 · prakhar897.github.io

12. 12JS
    JSON storage bins with schema validation▲74

    2018 · npoint.io

13. 13JS
    JSON-Splora, a gui for editing, visualizing, and manipulating JSON data▲54

    2016 · github.com

14. 14AJ
    Arbitrary JSON Comparison in Python▲6

    2014 · github.com

15. 15WJ
    Weird JSON▲19

    2022 · github.com

16. 16JD
    JSON Diff – Online JSON Diff Finder▲10

    2015 · json-diff.com

17. 17JV
    JSONLint – Validate and Format Your JSON Online▲5

    2024 · jsolint.com

18. 18
    Recast Pro▲1

    Messy AI output → clean, valid, explained JSON

    19d ago · recast-indol.vercel.app

19. 19MO
    Minimalist Open Source JSON formatter app▲13

    2020 · jsonformatter.live

20. 20AE
    An extensible JSON viewer, editor, formatter, validator and more▲10

    2019 · github.com

21. 21
    JSON Kit▲10

    Fix broken AI JSON and 6 more JSON tools, all in-browser

    May 2026 · jsonkit.co

22. 22JA
    JSON as Fast as Binary▲12

    2015 · hperadin.github.io

23. 23BJ
    behold, jsonifier▲10

    Just a simple tool I hacked together last night. I wanted to paste a bunch of JSON for reference in an IRC channel, but the JSON that I wanted to paste was not formatted. I didn't quickly find a pastebin that formatted JSON for me so I just made one. It's probably so simple that it's borderline useless, but here it is! http://jsonifier.com/ example output: http://jsonifier.com/paste/4e3f84b46f3b792dde000000

    2011

24. 24JE
    JSON Editor for macOS▲5

    2022 · theapiscout.com

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