Alternatives

Products that do what WebContainer API does

Dev environments, in your web app

1. 1
   Node.JS in the Browser – An Open-source Alternative to WebContainers▲6

   This is a Node.js compatible runtime in the browser. It supports CLI apps, Vite, and some agents (like Pi Agent) as well. Some notes: - This runs all code in a web worker using the host javascript runtime with rewrites for module loading and AsyncLocalStorage support using Oxc compiled to WASM. - Most of the libraries are bundled straight from Node.js upstream with light overrides where needed, ensuring compatibility. Libraries were only reimplemented where really needed - Despite having great integrations with the Puter desktop and APIs, this can be used completely seperately with OPFS…

   Aug 2026 · developer.puter.com

2. 2
   WebComponents.dev▲101

   The modern IDE for web platform developers

   2020

3. 3CA
   Codetainer – A Docker container in your browser▲42

   2015 · github.com

4. 4
   Keystone▲125

   Teach your repo how to run itself

   Mar 2026

5. 5
   StackHut▲106

   StackHut turns code into live APIs, powered by containers

   2015

6. 6
   Wasp-lang (Beta)▲226

   Develop web apps in React & Node.js with no boilerplate

   2022

7. 7
   Second State VM▲78

   High performance secure & portable Rust functions in Node.js

   2020

8. 8PB
   Polybit – Build, Deploy, Host Node.js APIs▲151

   2016 · polybit.com

9. 9
   Runno▲148

   Make embeddable code snippets that run in the browser

   2021

10. 10
    Reactide▲85

    The first React dedicated IDE

    2019

11. 11
    DevPod▲128

    Codespaces but open-source, client-only, and unopinionated

    2023

12. 12NS
    Neko – Self hosted virtual browser that runs in Docker and uses WebRTC▲227

    2021 · github.com

13. 13
    Stackblitz▲88

    Create, edit & deploy full stack apps in just one click

    2020

14. 14
    Builder Book▲130

    Learn how to build a full stack JS web app from scratch

    2018

15. 15
    JitBlox▲152

    Interactive prototyping of modern web apps without coding

    2024

16. 16
    CodeTruck▲96

    Get a fully functional Node.js API faster than ever before

    2022

17. 17
    Anyfiddle▲145

    Build, run and share code in any language from your browser

    2021

18. 18
    Building APIs with Node.js▲130

    Build scalable APIs in Node.js platform

    2016

19. 19
    Stacker▲159

    Build web apps in your browser, without code

    2018

20. 20
    WEBCode.run▲93

    Create services in developer friendly notebooks

    2022

21. 21
    StaticBackend▲118

    Low code self-hosted backend API to build web apps

    2023

22. 22NM
    Nodebook – Multi-Lang Web REPL on Docker▲82

    2020 · github.com

23. 23
    browserless.io▲143

    The full-code, no-ops tool for browser automation

    2023

24. 24
    NW.js▲77

    A new way of writing desktop apps with Web technologies

    2015

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