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$
USD
I will build chrome extension or browser extension manifest v3 expert
Zaeem Khan
About this gig
Need a custom Chrome extension? With 15+ years of development experience, I build production-ready Manifest V3 extensions.
What I deliver:
- Chrome Manifest V3 extensions (popup, sidebar, content scripts)
- DOM manipulation and page content extraction
- Chrome Storage API for data persistence
- MutationObserver for SPA-aware page detection
- Background service workers and alarms
- API integration and external data fetching
My published extensions:
- Deal scoring with 60+ data points analysis
- Google Maps data collection and ranking
- YouTube transcript bulk extraction
- Screen content analysis with OpenAI
- Client quality scoring for freelancers
- E-commerce price comparison
NOT included in base packages (available as extras):
- Backend API development
- Chrome Web Store account fees ($5)
- Ongoing maintenance after delivery
Important:
- Message me before ordering to discuss requirements
- Delivery starts after requirements are received
- Revisions cover adjustments only. New features require a new order
Get to know Zaeem Khan
Zaeem Khan
AI Full Stack Dev Flutter, React Native, iOS, Android, NodeJS, NET
- FromPakistan
- Member sinceOct 2015
- Avg. response time1 hour
- Last delivery2 years
Languages
English
Full-stack .NET and mobile developer with 15 years of experience and 35 apps shipped to App Store and Play Store.
I build cross-platform mobile apps (Flutter, React Native), enterprise backends (ASP.NET Core, NestJS), and web applications (React, Next.js, Blazor).
Mobile: Flutter, React Native, Kotlin, Swift
Backend: ASP.NET Core, NestJS, Node.js, Express
Databases: SQL Server, PostgreSQL, MongoDB, Redis
Integrations: Stripe, Firebase, Supabase, Twilio
Industries: Fintech, Healthcare, E-Commerce, Food Delivery, Loyalty, Sports Tech, POS
Portfolio: mzaeemkhan.com
FAQ
What is Manifest V3?
It is the latest Chrome extension standard required by Google. All new extensions must use V3. I build exclusively with V3.
Can you modify an existing extension?
Yes, if you have the source code. Send me the details and I will provide a custom quote.
Do you publish to Chrome Web Store?
I can prepare the package for submission. Publishing requires your developer account ($5 fee paid to Google).
Can the extension work on multiple browsers?
Manifest V3 extensions work on Chrome, Edge, Brave, and other Chromium browsers. Firefox support requires additional work.
