Dev tools · alternatives · 2026

24 alternatives to El Validator

A JSON Object Validator and Sanitizer to check User-Input

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. El Validator launched in 2022; newer entries below may have overtaken it.

1. 1
   Validator▲345

   Research and validate you micro saas ideas fast as Cheetah

   2024 · its alternatives →

2. 2TW
   This website is valid JSON▲604

   2020 · webdatarender.com · its alternatives →

3. 3
   volder▲63

   Schema builder and data validation for javascript

   2022 · its alternatives →

4. 4
   Schema Validator▲6

   Free json-ld & schema.org validator tool

   Nov 2025 · schemavalidator.com · its alternatives →

5. 5JS
   JSON storage bins with schema validation▲74

   2018 · npoint.io · its alternatives →

6. 6PJ
   Pg_jsonschema – A Postgres extension for JSON validation▲203

   pg_jsonschema is a solution we're exploring to allow enforcing more structure on json and jsonb typed postgres columns. We initially wrote the extension as an excuse to play with pgx, the rust framework for writing postgres extensions. That let us lean on existing rust libs for validation (jsonschema), so the extension's implementation is only 10 lines of code :) https://github.com/supabase/pg_jsonschema/blob/fb7ab09bf6050... happy to answer any questions!

   2022 · github.com · its alternatives →

7. 7
   Schema Validator Browser Extension▲122

   Boost SEO with One-Click Schema & Rich Results Testing

   2023 · its alternatives →

8. 8VJ
   Verify JSON using minimal schema▲91

   2020 · github.com · its alternatives →

9. 9
   Email Validator!▲193

   Free JSON API that gives you a simple way to validate emails

   2015 · its alternatives →

10. 10
    Checker▲124

    Detect fake signups in under 200ms with an easy-to-use API

    2025 · its alternatives →

11. 11
    Validatorapp▲120

    Idea and MVP validation software

    2020 · its alternatives →

12. 12VJ
    validate.js - lightweight JavaScript form validation library▲102

    2011 · rickharrison.github.com · its alternatives →

13. 13
    ezjson▲138

    JSON parsing, formatting, sorting and comparing

    2024 · its alternatives →

14. 14
    JSON Formatter & Validator▲7

    Professional online json tool | format, validate & convert

    2025 · its alternatives →

15. 15
    JSONverify▲92

    A web tool that validates and format JSON objects

    2021 · its alternatives →

16. 16
    JSON Formatter & Validator▲6

    Format, validate & beautify json

    Oct 2025 · json.toolaska.com · its alternatives →

17. 17
    JSON Formatter and validator▲18

    free online Json formatter and validator

    2025 · its alternatives →

18. 18
    JSON Formatter and Validator▲81

    Useful JSON online tools

    2022 · its alternatives →

19. 19
    JSON Utils▲6

    Free online json formatter, validator & editor tool

    Oct 2025 · onlinejsonutils.com · its alternatives →

20. 20
    Schema Markup Validator▲1

    Validate JSON-LD, detect Microdata/RDFa

    Feb 2026 · zirasoftware.com · its alternatives →

21. 21
    JSON Formatter & Validator▲6

    Free online json tools with syntax highlighting

    2025 · json.toolaska.com · its alternatives →

22. 22CS
    CSV Schema and Validator▲8

    2018 · github.com · its alternatives →

23. 23
    ThatNeedle JSON Validator▲1

    fast and easy-to-use online JSON validation tool

    Apr 2026 · thatneedle.com · its alternatives →

24. 24
    Json Formatter Online▲6

    Free online JSON formatter & validator tool

    2024 · 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 →