I will develop a Chrome extension for your workflow or store

I will develop a custom Chrome extension that fits your exact workflow or store, built from scratch with clean code, a polished popup or sidebar, and Web Store submission support.

What you get

A Chrome extension is only useful if it does the one job you actually need, without bloat, broken permissions, or a confusing interface. I build Manifest V3 extensions that do exactly that, whether you want to speed up an internal team process or ship a product to the public Chrome Web Store.

• A working, installable Chrome extension packaged as an unpacked folder and a production .zip, ready to load or submit
• Built on Manifest V3 (the current Chrome standard) so it stays compatible and won't be rejected for using deprecated APIs
• The exact UI surface your use case needs: a popup, an options/settings page, a side panel, an injected content script on target pages, or a background service worker running silently
• Clean, commented JavaScript (or TypeScript on request), organized so you or your developer can maintain it later
• Sensible, minimal permissions requested only for what the extension does, which matters for both user trust and Web Store review
• Local data storage via chrome.storage (sync or local) so user settings, saved items, or state persist across sessions and devices
• Integration with your API or a third-party API when your workflow needs to fetch, push, or sync data (REST/JSON; auth handled where keys are provided)
• A simple, readable interface styled to match your brand or kept clean and neutral, your choice
• A short written setup guide covering how to load, configure, and (if relevant) publish the extension
• Source files you fully own, with no hidden lock-in

Plans

Feature	Basic	Standard	Premium
Manifest V3 extension	Included	Included	Included
Popup UI	Simple	Custom-styled	Custom-styled
Content script (page injection)	—	1 site/pattern	Multiple sites
Options/settings page	—	Included	Included
Side panel or background worker	—	One of them	Both
Local data storage	Basic	Included	Advanced
External / your API integration	—	Basic	Full
Web Store submission help	—	Guidance	Done for you*
Setup guide	Included	Included	Included
Revisions	1	2	3

*Web Store submission requires your own Chrome Web Store developer account; I prepare the package, listing assets, and walk through publishing, but the account and any registration step stay on your side.

How it works

1. You describe the goal. Tell me what the extension should do, which sites it touches (if any), what data it handles, and whether it's for internal use or public release. Screenshots or a rough sketch help a lot.
2. I scope it back to you. I confirm the exact features, the UI surface, the permissions required, and which tier fits, so there are no surprises about what's in and what's out.
3. I build the core. I set up the Manifest V3 structure, the service worker, and the main UI, then wire up the logic step by step.
4. You get a testable build. I send an unpacked version you load via chrome://extensions in developer mode so you can try it on your real pages and data.
5. We refine. You send feedback; I apply revisions within your tier to get behavior, wording, and styling right.
6. I package and hand off. You receive the final source, the production .zip, and the setup guide. On Standard and Premium I also help with Web Store listing and submission.

Why choose this

I focus specifically on browser extensions, so I know the parts that trip people up: the Manifest V3 service-worker lifecycle, message passing between content scripts and the background, host-permission prompts, content security policy restrictions, and the Web Store review rules that get listings rejected. I keep permissions tight and code readable, which means your extension loads cleanly, behaves predictably, and is something a future developer can pick up without rewriting. I'd rather build a small extension that does one job perfectly than an overstuffed one that half-works. You get honest scoping up front, a build you can actually test on your own setup, and source files you own outright.

Who it's for / use cases

• Store owners and operators who want a buyer-facing or admin helper: a quick coupon finder, a product-info overlay, a price or stock checker, a one-click action panel for the store dashboard
• Teams automating a repetitive browser task: auto-filling forms, scraping a value off an internal page, adding buttons or shortcuts to a tool you use daily
• Founders validating a product idea who need a real, installable extension to demo or launch
• Marketers and researchers who want to capture, tag, or export data from pages as they browse
• Anyone who keeps doing the same clicks every day and wants the browser to do them instead

FAQ

Q: Does this work in browsers other than Chrome? The extension targets Chrome and is built on Manifest V3. Chromium-based browsers like Edge and Brave usually run the same package with little or no change. Firefox uses a different extension model, so it isn't covered by default; ask me if you need it and I'll scope it separately.

Q: Can you publish it to the Chrome Web Store for me? I prepare the production package and listing assets, and on Standard and Premium I walk you through or handle the submission. You'll need your own Chrome Web Store developer account, since the listing must live under your identity. Google's review can take time and is outside my control.

Q: Will it work on a specific website, like my CRM or a marketplace? Yes, as long as the target pages are reachable in the browser. I write a content script matched to that site's URL pattern. If the site changes its layout later, the script may need an update, which I'll flag honestly when we scope.

Q: Can the extension talk to my own backend or a third-party API? Yes. I can integrate REST/JSON APIs to fetch or send data. If authentication or API keys are involved, you provide the credentials and I wire them in securely using the extension's storage and permissions.

Q: Do I own the code? Fully. You receive all source files and can modify, reuse, or hand them to another developer with no restrictions from me.

Q: How do I test it before it's final? I send an unpacked build that you load through Chrome's developer mode. You try it on your own pages and data and send feedback, which I address within your tier's revisions.

Q: Can it run automatically in the background? Yes. Standard and Premium can include a background service worker that runs on a schedule or in response to browser events, with no popup needed.

Q: What do you need from me to start? A clear description of the goal, the sites or data involved, any branding or styling preferences, and API credentials if integration is required. The more specific you are, the faster and tighter the build.