Plasmo – a framework for building modern Chrome extensions
Hey 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…
In plain words
Plasmo is a framework for building Chrome extensions that uses a declarative approach instead of requiring manual configuration in manifest.json files. Developers can specify extension settings, permissions, and file locations through the framework rather than repeatedly configuring Chrome directly. Built by developers frustrated with the imperative configuration process, it streamlines extension development for programmers creating browser add-ons.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey 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 feels like a good time to showcase it and hear what people think!
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