Dev tools · alternatives · 2026

24 alternatives to Smart JSON Linter & Formatter

Just like jsonlint, but smarter

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   JSON Formatter and Validator▲81

   Useful JSON online tools

   2022 · jsonformatter.net · its alternatives →

2. 2
   JSON Lint▲5

   A Simple JSON validator and formatter

   2016 · jsonlint.com · its alternatives →

3. 3
   Simple Tools▲13

   Simple JSON Tool with Repair & AI Fix!

   2025 · tools.mingxiangzhe.com · its alternatives →

4. 4
   JSONLint▲7

   All-in-one JSON Tools for Developers

   2025 · jsolint.com · its alternatives →

5. 5
   OK JSON▲113

   Format and view JSON with native Mac app

   2021 · okjson.app · its alternatives →

6. 6
   OK JSON▲104

   The ultimate JSON formatter for your Mac

   2023 · okjson.app · its alternatives →

7. 7
   JSON Utils▲6

   Free online json formatter, validator & editor tool

   2025 · onlinejsonutils.com · its alternatives →

8. 8
   JSONLint – Validate and Format Your JSON Online▲5

   Validate, lint, and format JSON instantly. Use free online tools for JSON conversion, comparison, and developer workflows.

   2024 · jsolint.com · its alternatives →

9. 9
   Advanced JSON Formatter▲11

   Efficient JSON editing with one-click formatting & search

   2025 · its alternatives →

10. 10
    JSONverify▲92

    A web tool that validates and format JSON objects

    2021 · jsonverify.com · its alternatives →

11. 11
    JSON Formatter and validator▲18

    free online Json formatter and validator

    2025 · its alternatives →

12. 12IM
    I made a tool which fixes broken JSONs▲29

    2024 · prakhar897.github.io · its alternatives →

13. 13
    JSON Formatter▲2

    Beautify, validate & convert JSON — free, no login and fast.

    May 2026 · formatjson.online · its alternatives →

14. 14
    JSON Formatter & Validator▲6

    Free online json tools with syntax highlighting

    2025 · json.toolaska.com · its alternatives →

15. 15
    JSON Formatter Online▲7

    Free json formatter & validator online

    2025 · json-formatter-new.vercel.app · its alternatives →

16. 16
    AI JSON Formatter▲4

    Fast & easy online tool to format JSON using AI

    2024 · its alternatives →

17. 17
    JSON Console▲2

    The JSON formatter developers actually want to use

    2025 · jsonconsole.com · its alternatives →

18. 18
    ninjas.me▲8

    Json formatter

    2025 · its alternatives →

19. 19
    JSON Formatter▲7

    A clean, responsive, and modern JSON Formatter.

    2025 · harsh98trivedi.github.io · its alternatives →

20. 20
    Better JSON Formatter▲1

    Smart JSON formatter: auto-fix, URL decode & copy nodes

    May 2026 · dev-toolsonline.com · its alternatives →

21. 21
    json-formatter▲6

    A more user-friendly json formatting tool

    Oct 2025 · tools.famral.com · its alternatives →

22. 22
    Free JSON formatter & validator▲7

    Format, validate and beautify json

    2025 · formatjsononline.com · its alternatives →

23. 23
    Json Formatter Online▲6

    Free online JSON formatter & validator tool

    2024 · its alternatives →

24. 24
    JSON Formatter & Validator▲7

    Professional online json tool | format, validate & convert

    2025 · instantconvert.online · 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 →