extn
Build Chrome Extensions Effortlessly
extn launched on November 15, 2025 with 7 votes, #1,843 of 9,796 launches that month.
What it does
A modern TypeScript framework for building Chrome Manifest V3 extensions with hot reload, live preview, and Vite-powered development. Create production-ready extensions in seconds.
Build Chrome extensions in seconds using AI. Generate manifest, scripts, and UI automatically.
Does a similar job
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I made a CLI tool to create web extensions with no build configuration2024 · github.com · ▲381Hello HN! I'm the creator and solo developer of Extension.js, a development tool for browser extensions with built-in support for TypeScript, WebAssembly, React, and modern JavaScript. Developers use it to spend less time configuring the compilation config or learning new frameworks and more time actually writing code. Most projects similar to Extension.js rely on some sort of abstraction or configuration to get started, making the initial development process slow given the extra learning curve and setup guidelines. By using Extension.js, adding the package to your npm scripts is all it…
- CCCreate Chrome Extensions for internal use2021 · extension.dev · ▲47
Develop, preview, and ship browser extensions for every browser.
Plasmo – a framework for building modern Chrome extensions2022 · github.com · ▲132Hey HN, we're excited to have people try out our framework! When we built out a Chrome extension earlier this year, we noticed that the config was too imperative. You had to constantly tell Chrome via the manifest.json file where your files were, what your permissions should be, etc. So we thought it might be interesting to build a more declarative framework. When we built a proof of concept, we enjoyed working with it and decided to invest more time into making it usable and adding more features. We're still pretty early in building it out, and there's a bunch more we want to add, but this…
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