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…
Plasmo – a framework for building modern Chrome extensions launched on June 3, 2022 with 132 votes, #234 of 3,005 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 4 years on.
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
🧩 The Browser Extension Framework. Contribute to PlasmoHQ/plasmo development by creating an account on GitHub.
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…
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