Dev tools · alternatives · 2026

24 alternatives to V4 forms

validation

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. V4 forms launched in 2019; newer entries below may have overtaken it.

1. 1VJ
   validate.js - lightweight JavaScript form validation library▲102

   2011 · rickharrison.github.com · its alternatives →

2. 2
   Form-validation.js – JavaScript form validation library▲29

   The most customizable validation framework for JavaScript. - soc221b/form-validation.js

   2020 · github.com · its alternatives →

3. 3TW
   This website is valid JSON▲604

   2020 · webdatarender.com · its alternatives →

4. 4
   a small jQuery Form Validation library▲47

   Got bored of using other ones, so made my own. Contribute to jackfranklin/jQuery-Form-Validator development by creating an account on GitHub.

   2012 · github.com · its alternatives →

5. 5
   octaValidate▲69

   A client-side form validation library

   2022 · github.com · its alternatives →

6. 6
   Hyperform▲5

   Complete implementation of HTML 5 form validation API in JS

   2016 · hyperform.js.org · its alternatives →

7. 7
   KwesForms▲110

   The most complete form service for developers

   2024 · kwesforms.com · its alternatives →

8. 8
   FormSwift▲208

   Ready made editable library of legal & business documents.

   2015 · formswift.com · its alternatives →

9. 9
   Formspree▲243

   The form solution for any developer

   2021 · formspree.io · its alternatives →

10. 10
    Cycles▲179

    Visual feedback and approvals for web development

    2016 · cycleshq.com · its alternatives →

11. 11
    JavaScript.com▲217

    A free resource for learning and developing in JavaScript

    2015 · javascript.com · its alternatives →

12. 12
    NotebookJS▲109

    Scientific computation for JavaScript

    2016 · datazar.com · its alternatives →

13. 13
    p5.js▲202

    JS library for creating graphic and interactive experiences

    2015 · p5js.org · its alternatives →

14. 14
    Octavalidate▲61

    A client-side and server-side form validation library

    2022 · octagon-simon.github.io · its alternatives →

15. 15
    is.js▲132

    Micro check library for programmers

    2015 · is.js.org · its alternatives →

16. 16
    Formst▲84

    Model-driven form library for React

    2021 · formst.geekyants.com · its alternatives →

17. 17
    Subform▲165

    A CAD-inspired design tool for UX/UI design.

    2016 · subformapp.com · its alternatives →

18. 18
    React Hook Form – Simple Form Validation▲112

    React hook for form validation without the hassle

    2019 · react-hook-form.com · its alternatives →

19. 19
    JavaScript Air - 22: The Science of People in Tech▲65

    What you can do to improve your workspace and community

    2016 · javascriptair.com · its alternatives →

20. 20
    AniJS▲87

    UI Interaction Library for Web Designers in Plain English

    2014 · anijs.github.io · its alternatives →

21. 21FJ
    Formbuilder.js▲78

    2013 · dobtco.github.io · its alternatives →

22. 22VJ
    Valib.js - validation library for the browser and Node.js▲7

    2014 · sideralis.org · its alternatives →

23. 23
    Modular JavaScript▲67

    Let's write robust, well-tested, modular JavaScript code.

    2016 · rajabandotind.com · its alternatives →

24. 24
    Monkberry▲6

    A JavaScript library for building web user interfaces

    2016 · monkberry.js.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 →