Custom Extension Build
A bespoke Manifest V3 extension scoped to your features, target sites, and brand.
See pricing
Most extensions on the store solve one problem badly. We build the one that solves your problem precisely. Every project starts with a written brief covering your target websites, the user actions you want to enable, and the data you need to read or modify on the page.
From there we ship a clean, modular codebase: a service worker for background work, a popup or side-panel UI built in React (or vanilla JS for the lightest tiers), an options page for power users, and content scripts that touch only the DOM nodes they need. We pin every chrome.* permission to the narrowest scope that still gets the job done — that matters for store review.
You receive a packaged ZIP, the unminified source, a one-page install guide for end users, and a build script you can re-run yourself.
What is included
- Manifest V3 service worker architecture
- React + Tailwind popup (or vanilla on light tiers)
- Content scripts scoped per-site
- Options page with chrome.storage sync
- Source code + reproducible build
- One-page user install guide
Sample interfaces
Related services
Chrome API Integration
Deep integration with chrome.tabs, chrome.scripting, chrome.storage, alarms, and messaging.
Cross-Browser QA
Verified across Chrome, Edge, Brave, and Opera — with a written QA checklist per project.
Web Store Publishing
We package, submit, and shepherd your extension through Chrome Web Store review.