ellul.ai / Services / Apps and software
Chrome extension
You want a small browser tool for your team or customers.
One fixed fee. Never by the hour. That is £20 over the median of 3 published prices.
- Chrome extension (Manifest V3) for one simple job
- Popup and settings page, also working in Edge
- Linked to one existing API or your own backend
- Packaged and submitted to the Chrome Web Store for review
How long: 1 week
What other agencies charge for Chrome extension
3 published prices for Chrome extension on the same basis, from 3 providers, have a median of £225 (middle half £225 to £487.50). ellul.ai's £245 is £20 over the median of 3 published prices.
| Who | Price | Basis | Source |
|---|---|---|---|
| ellul.ai | £245 | One-off | Fixed, this page |
| Chrome extension developer on ContraSri Lanka · marketplace listing | $300£225 | One-off | their page read Nov 2026“Price starts at $300. Fully functional Chrome extension.” |
| Mahmoud Elmaandy on ContraEgypt · marketplace listing | $300£225 | One-off | their page read Nov 2026“Starting at $300, Duration 1 week: Manifest V3 architecture, service workers, content scripts, API integration and data sync, React or Vue UI inside extensions” |
| Groovy Webgroovyweb.co | $1,000£750 | One-off | their page read Nov 2026“Starting from $1K, Yes! That's true; Chrome Browser Extension development begins with the lowest at $18/ Hour with Groovy.” |
Prices as each provider publishes them on its own page, read November 2026; dollars at £0.75 and euros at £0.86. 3 more prices were read on another basis (hourly, a different unit or a different scope) and are not counted. The data: JSON and CSV.
How many people are asking for it
77 posts on Reddit asked to hire someone for Chrome extension between November 2025 and November 2026, 32 of them in the last 90 days, most on r/freelance_forhire, r/forhire, r/slavelabour. Three of them: request 1, request 2, request 3. Every service ranked. These are businesses looking to buy each service, not jobs we are offering: ellul.ai sells these services and does not recruit through this site.
You pay separately, at cost
- The Chrome Web Store one-time developer registration fee, paid to Google
- Hosting or usage costs of the API or backend it connects to
What you supply
- A Chrome Web Store developer account in your name
- Access to the API or backend, with its documentation
- A privacy policy page if the extension handles user data
What the price does not cover
- One simple job; several screens, accounts, payments or scraping are priced as a web app
- Google decides whether the extension is published and how long review takes
- Connects to one existing API or backend; building that backend is not included
The rules that apply
- Chrome Web Store policy says an extension must have a single purpose that is narrow and easy to understand. Chrome Web Store Program Policies: Quality guidelines
- Chrome Web Store policy says an extension that handles any user data must post an accurate, up to date privacy policy, linked in the Developer Dashboard. Chrome Web Store Program Policies: Privacy policies
How it works
Pick what you need
Choose a service and leave your details.
Get your fixed price
A written scope and price by email within a day.
Work gets done
Done in-house, once you approve the scope.
Questions
How much does Chrome extension cost?
Chrome extension costs £245 at ellul.ai, a fixed price agreed in writing before work starts. 3 published prices for Chrome extension on the same basis, from 3 providers, have a median of £225 (middle half £225 to £487.50).
What is included?
Chrome extension (Manifest V3) for one simple job. Popup and settings page, also working in Edge. Linked to one existing API or your own backend. Packaged and submitted to the Chrome Web Store for review.
What is not included in the price?
You pay these directly, at cost: The Chrome Web Store one-time developer registration fee, paid to Google. Hosting or usage costs of the API or backend it connects to.
What do you need from me?
A Chrome Web Store developer account in your name. Access to the API or backend, with its documentation. A privacy policy page if the extension handles user data.
What does it not cover?
One simple job; several screens, accounts, payments or scraping are priced as a web app. Google decides whether the extension is published and how long review takes. Connects to one existing API or backend; building that backend is not included.
Which rules apply to Chrome extension?
Chrome Web Store policy says an extension must have a single purpose that is narrow and easy to understand. (Chrome Web Store Program Policies: Quality guidelines) Chrome Web Store policy says an extension that handles any user data must post an accurate, up to date privacy policy, linked in the Developer Dashboard. (Chrome Web Store Program Policies: Privacy policies)
How many people are looking for Chrome extension?
77 posts on Reddit asked to hire someone for Chrome extension between November 2025 and November 2026, 32 of them in the last 90 days, most on r/freelance_forhire, r/forhire, r/slavelabour. Every service ranked the same way: https://ellul.ai/demand
How long does it take?
1 week. The written scope gives the timeline before anything starts.
Is it charged by the hour?
No. ellul.ai never charges by the hour or the day. The price is fixed against the written scope.
More in apps and software: App MVP (iOS and Android) · Bespoke web app · Integration between two systems · App maintenance and updates · No-code app (Bubble, FlutterFlow, Glide or Softr) · Internal tool or admin panel (Retool) · Custom WordPress plugin · Discord, Telegram or Slack bot · App backend setup (Supabase or Firebase) · Code and security review · App and MVP scoping · all services