Life & fun · alternatives · 2026

24 alternatives to Obey JavaScript Data Validation and Modeling

:hammer: Asynchronous JavaScript Data Modelling and Validation - psvet/obey

Obey is a JavaScript library for data validation and modeling launched in 2016. It helps developers define rules for how data should be structured and automatically validate incoming information against those rules.… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Obey JavaScript Data Validation and Modeling launched in 2016; newer entries below may have overtaken it.

1. 1BJ
   Behave.js – Coding Behaviors for textarea elements▲180

   2013 · jakiestfu.github.com · its alternatives →

2. 2
   ServBay▲399

   Hello HN, I’m one of the creators of ServBay. I built this because I got tired of the cognitive load required just to start coding. On my Mac, it was a fragile mix of Homebrew services and asdf conflicts. On Windows, managing PATH variables and fighting with Docker Desktop's resource usage was equally frustrating. I missed the simplicity of the MAMP/XAMPP era, but I needed to support modern stacks (Go, Rust, Node, etc.). What it is: ServBay is a native local development environment for both macOS and Windows. It is not a wrapper around Docker or VMs. It bundles everything you need into…

   2024 · servbay.com · its alternatives →

3. 3WJ
   Way.js – Simple, persistent, framework-agnostic two-way databinding▲162

   2014 · gwendall.github.io · its alternatives →

4. 4
   An experimental data-flow analysis tool for JavaScript▲95

   Find the origin of any character in the DOM

   2019 · fromjs.com · its alternatives →

5. 5
   Sandworm Cloud Edition▲326

   Keep your JavaScript code secure and compliant with Sandworm

   2023 · sandworm.dev · its alternatives →

6. 6
   Jaws – a JavaScript to WASM ahead-of-time compiler▲290

   I've open sourced a JavaScript to WASM compiler. It's an experimental tool, but given the semantics I already implemented, I'm fairly certain I am able to eventually cover 100% of JavaScript spec. Any ideas, questions or critique welcomed! If you are interested in WASM, especially with new proposals like WASM GC or exception handling, it might be a good source of seeing these features in action - the project has a few thousand lines of hand written WAT so far.

   2024 · github.com · its alternatives →

7. 7
   A tiny web browser implementation with V8 JavaScript engine and Rust▲144

   An example implementation of a tiny Web browser for educational purposes. - lmt-swallow/puppy-browser

   2021 · github.com · its alternatives →

8. 8
   CalDOM: An agnostic, reactive and minimalist JavaScript UI library▲107

   An agnostic, reactive & minimalist (3kb) JavaScript UI library with direct access to native DOM.

   2021 · caldom.org · its alternatives →

9. 9
   Sandworm▲293

   Keep your JavaScript code secure and compliant with Sandworm

   2023 · sandworm.dev · its alternatives →

10. 10
    octaValidate▲69

    A client-side form validation library

    2022 · github.com · its alternatives →

11. 11
    Hammer.js▲193

    Add touch gestures to your site

    2015 · hammerjs.github.io · its alternatives →

12. 12
    Glint▲107

    Claude Code activity, right where you want it.

    Jun 2026 · glint.binarybeam.net · its alternatives →

13. 13
    TryCode▲72

    Realtime collaborative code editor (beta)

    2019 · trycode.pw · its alternatives →

14. 14VJ
    validate.js - lightweight JavaScript form validation library▲102

    2011 · rickharrison.github.com · its alternatives →

15. 15
    A Chrome extension that tracks front-end JavaScript at runtime▲95

    A chrome extension tracks front-end JavaScript that uses DOM / jQuery APIs to manipulate html dom elements (e.g., change style, attach event listener) at runtime. - pilagod/js-tracker

    2018 · github.com · its alternatives →

16. 16
    SlothTools Data Manipulation Editor▲70

    Code based data manipulation tool for text, arrays, and JSON

    2023 · sloth.sellersew.com · its alternatives →

17. 17
    Code editor by Flawwwless▲89

    An online Javascript code editor 🤖

    2019 · its alternatives →

18. 18
    Bless your JavaScript code▲19

    A Node.js package for invoking divine blessings for one's Javascript code. - rudimk/dua.js

    2017 · github.com · its alternatives →

19. 19
    An opinionated approach to have type safety in native JavaScript▲19

    Post about Avocado, a small library and pattern guide to help you with type safety and data validation in native JavaScript.

    2015 · rafelsberger.at · its alternatives →

20. 20
    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 →

21. 21
    Brutal.js – a small framework for building brutalist web applications▲62

    2018 · github.com · its alternatives →

22. 22
    Form-validation.js – JavaScript form validation library▲29

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

    2020 · github.com · its alternatives →

23. 23
    Janeway – A more mouse-driven, curses-based Node.js console▲25

    🌌 A Node.js console REPL with object inspection and many other features - 11ways/janeway

    2016 · github.com · its alternatives →

24. 24
    volder▲63

    Schema builder and data validation for javascript

    2022 · github.com · 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 →