Alternatives

Products that do what Unreal.js is a plug-in which brings JavaScript into UnrealEngine does

1. 1
   Unreal Engine 5.8▲156

   Build unreal games with AI agents

   Jun 2026 · unrealengine.com

2. 2
   Impossible.js▲100

   Build terminal apps in JavaScript

   2023

3. 3
   Replica's Unreal Engine Plugin▲157

   AI voice actors for Unreal Engine

   2020

4. 4AJ
   Anime.js – Polyvalent JavaScript Animation Engine▲283

   2016 · anime-js.com

5. 5
   Make Live▲79

   Run Unreal Engine projects in the browser

   2022

6. 6WA
   WrittenRealms – a modern platform for text-based games▲200

   2021 · writtenrealms.com

7. 7IM
   I'm open-sourcing my game engine▲318

   Modd.io is a collaborative game editor that runs in browser. It's kind of like Figma for game dev. We made this engine low-code and multiplayer-first, so developeres can quickly prototype casual multiplayer games. I hope some of you guys will find this useful. Would love to hear feedback also. Thank you. Engine Demo: https://www.modd.io

   2023 · github.com

8. 8
   Theatre.js▲241

   Animation and 3D editor for JavaScript

   2022

9. 9UE
   Unreal Engine 5 in WebGPU▲63

   2024 · twitter.com

10. 10
    Horizon 1.0▲316

    Realtime, open-source backend for JavaScript apps

    2016

11. 11
    PlayJS▲138

    Playground JavaScript web, now with superpowers

    2023

12. 12PJ
    Persona.js – a vanilla-JS agent UI library with native WebMCP (MIT)▲27

    Hey everyone. My cofounder and I are open sourcing Persona.js (https://www.persona-chat.dev/). It's a VanillaJS library that helps anyone build agentic experiences on the web, without a framework dependency, and full WebMCP support So, why'd we do this? 1) We're super fans of the web and the browser can do a ton today 2) We've seen AI builds be way overly complex because the FE requires a large project within an existing app OR the site wasn't using a framework to begin with If you've been a part of huge apps with multiple frameworks inside them, or work inside CMS /…

    Jun 2026 · github.com

13. 13MJ
    Minified.js – a fully-featured, 4K alternative to jQuery and MooTools▲158

    2013 · minifiedjs.com

14. 14SN
    Skruv – No-dependency, no-build, small JavaScript framework▲123

    2021 · skruv.io

15. 15
    Total.js Flow▲111

    Visual Programming Interface for everyone

    2023

16. 16
    Total.js Platform▲93

    Open-source JavaScript platform

    2021

17. 17KJ
    kutty, jQuery-free intercooler.js▲115

    2020 · kutty.org

18. 18AA
    ArkScript, a small and fast language for scripting video games▲101

    2020 · github.com

19. 19UA
    UltraEd – A level editor/game engine for the Nintendo 64▲90

    2017 · github.com

20. 20
    Coherent UI▲89

    HTML5 GUI designed for real-time applications and games

    2015

21. 21UC
    Unreal cinematic battle simulator▲32

    A product I made to simulate cinematic battles in Unreal engine! Any thoughts or advice is welcome.

    2024 · fab.com

22. 22
    Unreal Engine Game Development▲2

    Build high-performance real-time 3D games with Unreal Engine

    Jun 2026 · bidbits.org

23. 23RA
    RealWorld – A Collection of Exemplary Front End and Back End Codebases▲49

    2017 · github.com

24. 24EA
    engine262, a JavaScript engine written in JavaScript▲8

    2018 · github.com

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