nowfound

Alternatives

Products that do what extFast does

Launch your extension in days, not weeks

  1. 1

    Build cross browser extensions for Chrome, Firefox & Opera

    2017

  2. 2
    Extro12

    Next.js for Chrome extensions

    Jul 2026 · extrojs.vercel.app

  3. 3IM

    Hello 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…

    2024 · github.com

  4. 4
    ShipFast812

    Ship your startup in days, not weeks

    2023 · shipfa.st

  5. 5

    Offline-first, highly scalable foundation for your next app

    2016

  6. 6
    extn7

    Build Chrome Extensions Effortlessly

    Nov 2025 · browser-tools.com

  7. 7CA

    Hey HN, we built a Chrome Extension (https://www.magicpatterns.com/extension) that converts a snippet of any website to an isolated React component. Demo video: https://youtu.be/hutUYDkyE_A How it works: 1) Iterate through each node in the selected DOM tree, 2) For each element, find any matching CSS selectors / inline styles, 3) Use window.getComputedStyle to get the deterministic values, 4) Construct JSX It was pretty hard producing the minimal code necessary while maintaining the same visual look. To do this, we implemented things like abstracting out…

    2024 · chromewebstore.google.com

  8. 8

    Run any Chrome Extension directly in Firefox

    2018

  9. 9

    Turn a design from any website into your own

    2024

  10. 10

    Chrome extension starter templates and examples

    2020

  11. 11
    Exstats225

    Track your browser extensions and competitors in one place

    May 2026 · exstats.com

  12. 12

    Run TypeScript snippets directly in Chrome DevTools

    2024

  13. 13
    Plasmo243

    The browser extension platform

    2023

  14. 14

    React and Next.js snippets with TypeScript

    2022

  15. 15TD
  16. 16

    A shared to-do list for Chrome and Slack

    2020

  17. 17
    Copycat120

    Extension to test web apps without writing a line of code

    2019

  18. 18

    Build your next Chrome Extension project faster than ever

    2023

  19. 19PA

    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…

    2022 · github.com

  20. 20

    Ship your Chrome extension in days, not weeks

    2025

  21. 21

    The first React dedicated IDE

    2019

  22. 22

    Copy and sync components with Class Sync Chrome Extension

    2024

  23. 23

    Lightning fast text expansion, unlimited snippets, modern UI

    2025

  24. 24

    Build faster on Webflow with the Relume Chrome Extension

    2022

Ranked by how close each launch is in meaning, then by votes. Refine with a description →