Dev tools · alternatives · 2026
24 alternatives to Possimpible: A Kernel Running on the Browser
Kernel in TypeScript. Contribute to intigos/possimpible development by creating an account on GitHub.
Possimpible is a kernel that runs directly in web browsers, launched in 2022. It enables users to execute kernel-level operations without leaving their browser environment. The project is designed for developers and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Possimpible: A Kernel Running on the Browser launched in 2022; newer entries below may have overtaken it.
- 1

Kernel in TypeScript. Contribute to intigos/possimpible development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 2
Bun▲303A fast JS runtime Node.js replacement with built‑in tools
Dec 2025 · bun.com · its alternatives →
- 3AA
Yes, another reactive UI framework for JavaScript. Bear with me, please... :-) I 'invented' the concept for this back in 2011, and it was used (as a proprietary lib) in various startups. Even though many similar open source libs have been released since, and boy have I tried a lot of them, none have been able to capture the elegance and DX of what we had back then. I might be biased though. :-) So I started creating a cleaned-up, modern, TypeScript, open source implementation for the concept about five years ago. After many iterations, working on the project on and off, I'm finally happy…
2025 · aberdeenjs.org · its alternatives →
- 4

Hi there! I've been on-and-off working on TacOS for a few months, which follows some UNIX-derived concepts (exec/fork, unix-style VFS, etc) and is now able to run a port of Doom, with a fairly small amount of modifications, using my from-scratch libc. The performance is actually decent compared to what I expected. Very interested to hear your thoughts. Thank you!
2025 · github.com · its alternatives →
- 5

Run KolibriOS, Linux or Windows 98 in your browser
2013 · copy.sh · its alternatives →
- 6

This TypeScript package allows you to safely execute JavaScript code within a WebAssembly sandbox using the QuickJS engine. Perfect for isolating and running untrusted code securely, it leverages the lightweight and fast QuickJS engine compiled to WebAssembly, providing a robust environment for code execution. Features - *Security*: Run untrusted JavaScript code in a safe, isolated environment. - *File System*: Can mount a virtual file system - *Custom Node Modules*: Custom node modules are mountable - *Fetch Client*: Can provide a fetch client to make http(s) calls - *Test-Runner*: Includes…
2024 · github.com · its alternatives →
- 7OS
2012 · ubercomp.com · its alternatives →
- 8

A Simple Unix-like operating system. Contribute to ozkl/soso development by creating an account on GitHub.
2019 · github.com · its alternatives →
- 9VM
2013 · blog.grunseid.com · its alternatives →
- 10

An example implementation of a tiny Web browser for educational purposes. - lmt-swallow/puppy-browser
2021 · github.com · its alternatives →
- 11

An agnostic, reactive & minimalist (3kb) JavaScript UI library with direct access to native DOM.
2021 · caldom.org · its alternatives →
- 12MT
2013 · teamten.com · its alternatives →
- 13

Lisp-based in-browser toy operating system. Contribute to AlexNisnevich/ECMAchine development by creating an account on GitHub.
2012 · github.com · its alternatives →
- 14

Linux virtual machine, running in the browser via HTML5/WebAssembly. Networking and graphics supported.
2021 · repl.leaningtech.com · its alternatives →
- 15

Matt Mueller's personal website for sharing what I've learned about programming, design, entrepreneurship and life.
2017 · mat.tm · its alternatives →
- 16

We've been building Crust (https://crustjs.com/), a TypeScript-first, Bun-native CLI framework with zero dependencies. It's been powering our core product internally for a while, and we're now open-sourcing it. The problem we kept running into: existing CLI frameworks in the JS ecosystem are either minimal arg parsers where you wire everything yourself, or heavyweight frameworks with large dependency trees and Node-era assumptions. We wanted something in between. What Crust does differently: - Full type inference from definitions — args and flags are inferred automatically. No…
Mar 2026 · github.com · its alternatives →
- 17

Osgood is a secure, fast, and simple platform for running JavaScript HTTP servers. - IntrinsicLabs/osgood
2019 · github.com · its alternatives →
- 18

cuTile Rust provides a safe, tile-based kernel programming DSL for the Rust programming language. It features a safe host-side API for passing tensors to asynchronously executed kernel functions. - NVlabs/cutile-rs
Jun 2026 · github.com · its alternatives →
- 19

BareMetal for the private/public cloud. Contribute to ReturnInfinity/BareMetal-Cloud development by creating an account on GitHub.
Jan 2026 · github.com · its alternatives →
- 20

A self-hostable Wasm sandbox for JavaScript workers.
Jun 2026 · kyushu.dev · its alternatives →
- 21

Full reactivity JS/TS framework. Lightweight replacement of React + MobX + React Router. Very small and fast !! - PxyUp/Revact
2019 · github.com · its alternatives →
- 22

A fast, rootless sandbox and virtual resource runtime for any workload, including untrusted and AI-generated code. Daemonless: a real, kernel-enforced container in ~3.5 ms from an OCI image, out of one static binary - getkern/kern
Aug 2026 · github.com · its alternatives →
- 23

Earlier this year, we released our open-source game engine [0] built with Rust, WebAssembly, and WebGPU. Today, we’re happy to announce the Ambient platform, which brings web deployment, server hosting, and more to the runtime. With Ambient, you can make a game, deploy it to the browser in one command, share your URL and instantly play with others, no downloads or installs needed. Our WASM use is innovative; it is being used as both a sandboxed runtime for user code, and as a way to run the entire Ambient runtime in the browser. This, paired with our ECS data model, enables a highly modular…
2023 · ambient.run · its alternatives →
- 24

Online OR1K Emulator running Linux. Contribute to s-macke/jor1k development by creating an account on GitHub.
2014 · github.com · its alternatives →
Also compare
- P11, Plan 9 kinda inspired kernel running on the browser alternatives
- Bun alternatives
- Aberdeen – An elegant approach to reactive UIs alternatives
- My from-scratch OS kernel that runs DOOM alternatives
- My x86 emulator written in JavaScript alternatives
- Execute JavaScript in a WebAssembly QuickJS sandbox 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 →