Hire the Best Browser Extension Freelancers
in Pakistan

Need a Chrome Extension that automates your workflow, integrates with your existing tools and APIs, and saves hours of manual work? You're in the right place. I specialize in building powerful Chrome Extensions (Manifest V3), browser automation, web scraping, and API integrations that help businesses increase productivity, streamline workflows, and scale faster. Whether you need a brand-new extension, want to upgrade from Manifest V2 to V3, integrate third-party APIs, fix an existing extension, or build a complex automation tool, I deliver clean, scalable, secure, and production-ready solutions. From Job application automation, AI-powered extensions, form filling, dropshipping tools, product listing automation, email extraction, coupon finders, authentication systems, payment integration (Stripe), dashboards, and custom business automation, I build browser extensions that solve real business problems. What I Can Help You With - Chrome Extension Development (Manifest V2 & V3) - Browser Automation & Workflow Optimization - Web Scraping & Data Extraction - AI Integration (OpenAI API) - OAuth, Google Authentication & User Login Systems - Stripe & Payment Gateway Integration - Dashboard & Admin Panel Development - React.js, Next.js & Modern JavaScript Applications - REST API Integration & Backend Development - Firefox, Edge & Chromium Browser Extensions Technologies - Frontend: HTML5, CSS3, JavaScript (ES6+), React.js, Next.js, Tailwind CSS, Bootstrap, Webpack - Backend: Node.js, Express.js, Supabase, REST APIs - Extensions: Chrome APIs, Manifest V2 & V3, Service Workers, Content Scripts - Integrations: OpenAI API, Stripe, OAuth, Google Authentication, Third-Party APIs Why Clients Work With Me - Top Rated Freelancer - 100% Job Success Score - 33+ Successfully Completed Projects - 950+ Hours Worked on Upwork - Fast Communication & On-Time Delivery - Clean, Maintainable & Scalable Code - Long-Term Support After Delivery I focus on delivering solutions that are reliable, user-friendly, and built for long-term success. If you're looking for a developer who understands both the technical and business aspects of Chrome Extension development, I'd be happy to discuss your project. In case of any issues, confusion, or questions, kindly let me know before starting the contract. Kind Regards Bakhtiar Khan

I build browser extensions for SaaS companies, from architecture to Chrome Web Store submission. I help SaaS companies ship production-ready browser extensions - from architecture to Chrome Web Store - so their product works where their users actually spend their day. SaaS teams hire me when they need a browser extension built right - not just working, but architected to scale with their product. I specialize in Manifest V3, cross-browser compatibility, and extensions that integrate cleanly with existing SaaS backends and APIs. 8+ years, 100+ extension projects, all major browsers. I've built everything from lightweight UI overlays to full AI-integrated extensions shipped on the Chrome Web Store.

I build AI agents, automation pipelines, and full-stack SaaS products that go live fast and scale without breaking. My work sits at the intersection of backend engineering and intelligent automation. Node.js on the server, OpenAI and Claude on the logic layer, and clean architecture that does not need a rewrite six months later. You get the output of a senior full-stack team with the accountability of one developer who owns the entire system from day one. 𝐖𝐇𝐎 𝐈 𝐇𝐄𝐋𝐏 Startups that need an AI-powered product launched quickly without burning budget on a full team. Businesses ready to automate repetitive workflows, reduce operational costs, and run 24/7 with intelligent systems. SaaS companies outgrowing their MVP. I build scalable multi-tenant architecture with Stripe subscription billing built correctly from day one. Founders who want one accountable developer owning the full system, from API integration to frontend, with full ownership at every stage. 𝐖𝐇𝐀𝐓 𝐈 𝐁𝐔𝐈𝐋𝐃 𝐀𝐈 𝐀𝐠𝐞𝐧𝐭𝐬 𝐚𝐧𝐝 𝐈𝐧𝐭𝐞𝐥𝐥𝐢𝐠𝐞𝐧𝐭 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 Custom autonomous agents and multi-step workflows using OpenAI GPT-4o, Claude, Gemini, and LangChain. I design agent pipelines that make decisions, take action, and handle complex business logic without human input. RAG pipelines, vector search, and document intelligence using Pinecone and ChromaDB. 𝐅𝐮𝐥𝐥 𝐒𝐭𝐚𝐜𝐤 𝐒𝐚𝐚𝐒 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 End-to-end applications with React.js, Next.js, Angular, and Vue.js on the frontend. TypeScript across the full stack. Backend with Node.js, NestJS, and Express. REST, GraphQL, and WebSocket APIs. Multi-tenant SaaS with Stripe billing, role-based access, team management, and usage-based feature gating. 𝐁𝐮𝐬𝐢𝐧𝐞𝐬𝐬 𝐚𝐧𝐝 𝐁𝐫𝐨𝐰𝐬𝐞𝐫 𝐀𝐮𝐭𝐨𝐦𝐚𝐭𝐢𝐨𝐧 End-to-end automation that eliminates manual work. Playwright and Puppeteer for browser automation and scraping pipelines. Webhook-driven workflows, n8n, ETL pipelines, Redis queues, and scheduled background jobs that run without supervision. 𝐀𝐏𝐈 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐢𝐨𝐧 𝐚𝐧𝐝 𝐓𝐡𝐢𝐫𝐝-𝐏𝐚𝐫𝐭𝐲 𝐒𝐞𝐫𝐯𝐢𝐜𝐞𝐬 I connect your app with Stripe, PayPal, Twilio, OAuth2, Zoom, Google APIs, and any REST or GraphQL service your product depends on. Full handling of authentication, webhooks, error management, and data sync across 30+ integrations delivered. 𝐂𝐡𝐫𝐨𝐦𝐞 𝐄𝐱𝐭𝐞𝐧𝐬𝐢𝐨𝐧𝐬 𝐚𝐧𝐝 𝐑𝐞𝐚𝐥-𝐓𝐢𝐦𝐞 𝐒𝐲𝐬𝐭𝐞𝐦𝐬 Custom Manifest V3 Chrome extensions for browser-based productivity and SaaS integration. Real-time dashboards, live collaboration tools, and video streaming with WebSockets, WebRTC, LiveKit, and FFmpeg. 𝐓𝐄𝐂𝐇 𝐒𝐓𝐀𝐂𝐊 AI and Agents: OpenAI GPT-4o · Claude · Gemini · LangChain · Pinecone · ChromaDB · RAG Pipelines · DeepSeek Backend: Node.js · NestJS · Express · FastAPI · Python · Flask Frontend: React.js · Next.js · Angular · Vue.js · TypeScript · Tailwind CSS · ShadCN · Kendo UI Databases: PostgreSQL · MongoDB · Redis · Elasticsearch DevOps: AWS · GCP · Docker · Kubernetes · Vercel Automation: Playwright · Puppeteer · n8n · Webhook Pipelines · Redis Queues · Celery Integrations: Stripe · PayPal · Twilio · OAuth2 · Zoom · Google APIs 𝐋𝐈𝐕𝐄 𝐏𝐑𝐎𝐃𝐔𝐂𝐓𝐒 𝐈 𝐇𝐀𝐕𝐄 𝐁𝐔𝐈𝐋𝐓 𝐒𝐜𝐫𝐨𝐥𝐥𝐢𝐧𝐠 𝐀𝐈: AI-powered TikTok automation platform with text-to-image, AI video generation, custom avatar creation, and fully automated campaign scheduling, built on Node.js and OpenAI. 𝐃𝐨𝐜𝐮𝐟𝐚𝐬𝐭 𝐀𝐈: AI process documentation platform that automatically records workflows and converts them into step-by-step guides, training videos, and interactive tutorials. 𝐂𝐨𝐧𝐭𝐞𝐧𝐭 𝐃𝐫𝐚𝐟𝐭𝐞𝐫: AI social media content platform with guided workflows, real-time generation, ad creative uploads, and Stripe subscription billing. 𝐖𝐇𝐘 𝐂𝐋𝐈𝐄𝐍𝐓𝐒 𝐂𝐇𝐎𝐎𝐒𝐄 𝐌𝐄 Over 8 plus years I have shipped AI-powered SaaS products, Chrome Extensions, and automation systems for startups across fintech, healthcare, and e-commerce. Every project gets full ownership from the first architecture decision to the final production deployment. Clean code, proper testing, documented handoffs. I work async-friendly, communicate clearly, and stay accountable through the full build cycle. Not just until the PR is merged. If you are building an AI product, need automation that actually runs in production, or want a Node.js expert who owns the full stack, send me a message. I respond within 24 hours and offer a free 30-minute scoping call for serious projects.

I’m a Senior Full-Stack Developer with 8+ years of experience, specializing in AI-powered solutions, secure web applications, and Chrome Extension development. I help businesses build scalable, intelligent, and security-focused applications that combine modern full-stack engineering with AI automation. 🔑 What I Do Best Full-Stack Web Development – Expertise in React, Next.js, Node.js, Laravel/PHP, and Java; strong database skills with Prisma, MySQL, PostgreSQL, and MongoDB. AI-Driven Development – Building AI-powered workflows, automation pipelines, and API integrations with tools like OpenAI, LangChain, and custom ML/automation solutions. Browser Extension Development – Designing, upgrading, and securing Chrome/browser extensions, including Manifest V3 migrations and integration with external APIs. Application Security – Secure coding practices (OWASP Top 10), API authentication (JWT, OAuth2), encryption, role-based access, and penetration testing insights. API Integrations & Automation – Connecting SaaS tools, CRMs, and third-party services through Zapier, Make.com, webhooks, cron jobs, and custom scripts. Data Handling – Web scraping, ETL pipelines, and intelligent dashboards with Pandas, Selenium, Playwright, and data visualization libraries. ✅ Why Clients Choose Me 8+ years delivering end-to-end secure projects from idea to deployment. Clean, scalable, and future-proof code with strong security principles. Strong focus on UI/UX alongside backend performance. Transparent communication and proactive collaboration. 📌 Let’s Connect Whether you need a secure full-stack application, an AI automation workflow, or a custom Chrome extension, I’ll bring your idea to life with precision and speed.

I help startups and product teams build scalable, high-performance web applications using modern web technologies. Whether you need: A production-ready SaaS product A real-time application (WebSockets, live data, trading dashboards) A complex UI-heavy frontend Clean architecture for long-term scalability —I build systems that are robust, maintainable, and fast. 🧠 Why Choose me I don’t just write code — I think like a product engineer. ✔ 50+ statisfied clients ✔ 20 real-world applications running live ✔ Deep understanding ✔ Strong focus on clean, maintainable code ✔ Fast execution without sacrificing quality I don’t just write code — I think like a product engineer. My Tech Stack Frontend - React/Next - Tailwind - Redux/Zutstand - Shadcn Backend - Node/Supabase/Nest.js - Express - Mongodb/postgresql - Typeorm, prisma QA and testing - Playwright - Cypress - Jest

Loyalty-Commitment-Perseverance I have 7+ years of experience in software development. My goal is to provide work with high quality and best practices to my customers. ✅ Upwork Certified: I am a Top Rated Plus Freelancer, recognized for consistently delivering high-quality work and providing excellent service to clients. ✅ Expertise: Web Application Development and Designing:- 1-Asp.net(MVC, Razor, Core, Blazor) 2-SPA (Angular.js, Knockout.js, VueJS, JQuery, and Angular) 3-WEB API using Asp.net MVC and Asp.net Core 4-Chrome, Mozilla Extensions (Web Scraping + Web Crawling) 5-Supabase Edge Functions, Deno, NodeJS, Express, MongoDB Database Design and Development:- 1-MSSQL 2-MySQL 3-PostgreSQL 4-MongoDB 5-Firebase API/SDK Integration:- 1-Facebook Graph API 2-Twitter API, 3-Instagram API 4 And Any other API Source Controls:- 1-GitHub 2-Microsoft Team Foundation Server 3-Bitbucket 4-Gitlab One of my key strengths is my availability and commitment to my clients. I am accessible most of the time during the day and even after completing a project, ensuring that I am always there to assist and support you whenever needed. I would be delighted to discuss your project requirements and explore how I can contribute to your success. Please feel free to reach out to me at any time to get started. Thank you for considering my services.