Dev tools · alternatives · 2026
24 alternatives to Vivari – Open-Source WebContainer for Node, Bun, and Python
Vivari is an open-source, MIT-licensed WebContainer: run Node, Bun and Python projects 100% inside the browser. Node
Vivari is an open-source WebContainer that runs Node, Bun, and Python code in the browser. Designed for developers, it enables serverless code execution without external infrastructure. The tool supports multiple… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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Bun▲295A fast JS runtime Node.js replacement with built‑in tools
Dec 2025 · bun.com · its alternatives →
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I made a built-from scratch Wayland Compositor to display any GUI app* in the terminal! I think there is a lot of unexplored potential in custom Wayland compositors, a lot of really cool things you can embed existing applications into! So, I started with embedding apps into the terminal because that is the easiest input/output (output is just utf-8 and I use the great `chafa` library for that, and I just read from stdin for the input). If you have any other ideas for cool Wayland compositors, let me know. I purposedly wrote 80% the app in Typescript to appeal to the most developers and…
2025 · github.com · its alternatives →
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Hi HN! Thanks for your attention to my post. It was a big challenge to run most of Node.js packages in browser, fast moreover. Virtual File system, resolve import/export. I got cold many times, depressions, burned out, yet still alive and finished it. Many guys helped me with an advice. Many users give a lot of positive feedback. There are 200,000 monthly unique users. I work full time now because of the freemium business model. To be honest - I am happy after many years of hard work.
2022 · playcode.io · its alternatives →
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Woxi is an interpreter for the Wolfram Language written in Rust. It comes with Woxi Studio, a Mathematica-like GUI built with iced, but you can also use Woxi through a CLI, Jupyter kernel, Python package, npm package, or WASM module. Compared with wolframscript / Mathematica, the main differences are: - Free and open source - Very fast startup - Typically milliseconds rather than seconds for the Wolfram kernel, making Woxi practical for shell scripts, one-liners, and other short-lived processes - Embeddable - It can run in a browser via WASM or be embedded into another application as a…
Aug 2026 · woxi.ad-si.com · its alternatives →
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Run WebAssembly made for outside the browser, inside the browser.
2022 · runno.dev · its alternatives →
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Control the web with prompts (open source)
2025 · browser-use.com · its alternatives →
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Open source, dev-friendly and powered by GraphQL and React
2019 · webiny.com · its alternatives →
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Open Interpreter▲182Control your computer with natural language
2023 · openinterpreter.com · its alternatives →
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Keystone▲125We kept hitting the same wall: you clone some arbitrary repo and just want it to run without any configuration work. So we built Keystone, an open source tool that spins up a Modal sandbox, runs Claude Code inside it, and produces a working .devcontainer/ config (Dockerfile, devcontainer.json, test runner) for any git repo. We build on the dev container standard, so the output works with VS Code and GitHub Codespaces out of the box. Main use cases: reproducible dev/CI environments, self-describing repos, and safely sandboxed coding agents. Our goal is to encourage all repos to…
Mar 2026 · github.com · its alternatives →
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Vivaldi 1.0▲277A new browser from the original Opera co-founder
2016 · vivaldi.com · its alternatives →
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I've been working on an MMORPG that is now in alpha as a solo developer. Here are the major open source technologies that I use: Blender - 3D modeling software for creating the overall environment and every game object. I've gotten a lot of CC and Public Domain assets from https://poly.pizza GLTF - I export assets from blender to the GLTF asset format JSON - I write a JSON config for every game object that describes things like its name, its interactions, its collisions, etc. Node.js exporter - I iterate over the environment and every asset to create a scene hierarchy. I use…
2024 · alpha.reconquer.online · its alternatives →
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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 · its alternatives →
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My company launched a new open source web browser built on Chromium. It supports decentralized domains on Handshake and is the first browser to support .eth DNS. It is also the first browser to support secure web browsing with DANE. Check it out: https://impervious.com/beacon https://github.com/imperviousinc/beacon
2022 · its alternatives →
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OpenIT▲63OpenSource alternative to ServiceNow that runs on ClaudeCode
May 2026 · openit-app.github.io · its alternatives →
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Dockerized is like npx for unix tools: Run popular cli tools without installation. Example: dockerized npm init dockerized python2 somescript.py Run an older version of a tool: NODE_VERSION=15.0 dockerized node Use cases: - Maintaining multiple versions of an app - Installing without polluting host machine - Quickly run some commands you may not have installed Features: - intuitive use. Just the original command, but with 'dockerized' in front. - dockerized apps can access the current directory and read/modify files, just like native apps. - no need to know which docker image this…
2022 · github.com · its alternatives →
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BrowserBash▲101CLI that turns plain-English into real browser tests
Jun 2026 · browserbash.com · its alternatives →
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Claude in Chrome, reverse-engineered and open-source. No domain blocklist. Any Chromium browser. Same 18 MCP tools, same performance. - noemica-io/open-claude-in-chrome
Apr 2026 · github.com · its alternatives →
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Hey, HN! I'm Aaron. I built an open-source Lovable for Claude Code users. Platforms like Lovable, Replit Agent, and Bolt require separate API keys and $25+/month subscriptions. But if you’re already subscribed to Claude Pro or Cursor, you can use those plans directly without extra costs. Claudable runs entirely locally through Claude Code (Cursor CLI also supported) and provides: - Instant UI preview (similar to Lovable) - Web-optimized, production-ready designs - Direct Git integration - One-click Vercel deployment - Zero additional API costs It’s open source and available today. I’m…
2025 · github.com · its alternatives →
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Glance ▲87Real browser for Claude Code Test, Screenshot, Automate
Mar 2026 · glance.debugbase.io · its alternatives →
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Hi everyone I'm new here and i wanted to introduce my project i've been working on. Astra is a simple but powerful node.js to exe compiler. It uses esbuild and Node SEA. It uses postject to inject your code to nodejs binary. It focuses more on compiling cli and Servers like pkg or nexe (express) than fullstack applications like electron or tauri. It has rich ESM and typescript support. It has good DX and cli UX. I made it bc i didn't like using pkg or nexe, they cause a lot of problems with esm. LIMITATIONS: Now it has problems compiling projects with depencides containing binaries (e.g.…
2025 · github.com · its alternatives →
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Glint▲107Claude Code activity, right where you want it.
Jun 2026 · glint.binarybeam.net · its alternatives →
Also compare
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- Webstudio Beta alternatives
- I've been making JavaScript sandbox alone for 6 years alternatives
- Woxi - Open-source Mathematica / Wolfram Language reimplementation alternatives
- I built a WASI playground for running CLI binaries in the browser 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 →