A Working Extension, Built to Your Brief
From an internal tool for your own team to a public utility on the Chrome Web Store — scoped, built, tested, and handed over with full source code.
We build and run our own extensions too
This isn't a service we're guessing at. We publish and maintain our own portfolio of Chrome extensions — a mix of free and paid tools used for lead capture — launched in May 2026 and still inside the Chrome Web Store's trust-building window that typically limits a new extension's visibility for its first few months.
Extensions of our own published and live on the Chrome Web Store
Installs since launch
Retention rate — installs that haven't uninstalled
Mix of lead-capture and paid utility extensions
A few common briefs
An internal tool for your own team — automate a repetitive browser task, pull data from a site you use daily, or add a missing feature to a tool you rely on
A small utility you publish to the Chrome Web Store as a lead magnet or standalone product
A companion extension for your own SaaS or website, giving users a faster way to interact with it from the browser toolbar
Three steps
Scope the brief
We start with exactly what the extension needs to do, for whom, and on which sites — a tightly scoped brief is what keeps a first build fast and on budget.
Build & test
Built with standard Chrome Extension APIs (Manifest V3), tested against the real sites and workflows it's meant to work with, not just a demo case.
Deliver & (optionally) publish
You get the finished, working extension and its source code. If it's going to the Chrome Web Store, we can also handle the listing and submission.
Frequently Asked Questions
What can a Chrome extension actually do?
Read and modify pages you visit, add UI to the browser toolbar, store data locally, and talk to your own API or website — a wide range, but always within Chrome's extension permission model, which we'll explain clearly for your specific use case before starting.
Is £497 the full cost for any extension?
£497 covers a well-scoped, single-purpose extension. More complex builds (multiple integrations, a custom backend, ongoing maintenance) are quoted separately once we understand the brief — we'll tell you upfront if your idea is bigger than the standard scope, rather than surprise you later.
Do you publish it to the Chrome Web Store for me?
We can, using your own Chrome Web Store developer account (Google requires the account to be yours, not ours) — we handle the packaging and submission, you keep full ownership and control of the listing.
Do I own the code?
Yes — you receive the full source code and own it outright. There's no ongoing dependency on us to keep it running unless you want continued support.
How long does it take?
Typically 2-3 weeks for a well-scoped single-purpose extension, from confirmed brief to delivered, tested build.
Have you actually built and published extensions before?
Yes — we maintain our own portfolio of 6 published Chrome extensions (a mix of free and paid lead-capture tools), with 950+ installs and 98% retention since their May 2026 launch. This service is built on that direct, ongoing experience with the Chrome Web Store's submission process, review requirements, and post-launch visibility patterns — not a first attempt on your project.
Have an idea for an extension?
Tell us the brief and we'll confirm scope and exact price within 24 hours.