Hire the Best Browser Extension Freelancers
in India

Need a secure Chrome Extension to automate workflows or a scalable SaaS platform built from scratch? I don't just write code; I architect complete digital products. I specialize in bridging the gap between browser environments and robust backend systems. Whether you are a founder building a new B2B SaaS, or a business needing a complex Manifest V3 Chrome Extension to streamline operations, I deliver secure, scalable, and premium solutions. Why clients choose me for complex builds: Chrome Extension Architect: I build secure, stealthy, and highly functional extensions using Manifest V3. From DOM parsing and API bridges to background service workers, I ensure they are bug-free, robust against dynamic web pages, and Chrome Store compliant. End-to-End SaaS Developer: I build the whole system. I connect the front-end dashboard to secure backend databases, handle user authentication (OAuth), and set up real-time data synchronization. Premium UI/UX Edge: Even heavy data applications should feel buttery-smooth. Because of my strong background in React, Tailwind, and GSAP, I ensure your SaaS doesn't just work perfectly—it looks like a million-dollar enterprise product. Strategic Problem Solver: I don't just blindly follow instructions. I proactively suggest architecture improvements, security fixes, and UI enhancements to make your product better. My Core Tech Stack: Browser Extensions: Chrome API, Manifest V3, Content Scripts, Service Workers, DOM MutationObservers Frontend: React.js, Next.js, TypeScript, Tailwind CSS, SCSS Backend & SaaS: Supabase (PostgreSQL), Firebase (Auth, Firestore), REST APIs, OAuth, Webhooks Premium UI (When needed): GSAP, Framer Motion Recent Project Highlights: Architected ClipSync, a complete micro-SaaS consisting of a Manifest V3 Extension and a Next.js Web App that securely synchronizes clipboard data across devices using Google OAuth and Firebase. Engineered a private, stealth B2B Chrome Extension for enterprise lead extraction, utilizing passive DOM parsing to bypass strict bot-detection limits. Ready to build a reliable, polished product? Click "Invite to Job" and let's discuss your architecture.

I am a Senior Full-Stack Web Developer with over 20 years of professional experience delivering secure, scalable, and high-performance web applications. I work across backend, frontend, and deployment, using modern tools and best practices to deliver efficient and maintainable solutions. My expertise includes PHP (CodeIgniter, WordPress, Joomla), Node.js, React.js, and Docker-based environments. I also actively use AI-assisted development tools such as GitHub Copilot to improve development speed, code quality, and consistency—while always applying strong engineering judgment, security awareness, and clean architecture principles. I have extensive experience building REST APIs, integrating third-party services, optimizing databases, modernizing legacy systems, and supporting long-term production applications. Key Skills & Technologies PHP / MySQL / CodeIgniter WordPress & Joomla (Custom Development & Migration) React.js (SPA, Modern UI Development) Node.js (Backend Services & APIs) Docker (Containerized Development & Deployment) GitHub Copilot & AI-Assisted Development REST APIs & System Integrations Performance Optimization & Security Best Practices Why Clients Hire Me ✔ 20+ years of real-world development experience ✔ Full-stack expertise (Frontend, Backend, DevOps) ✔ Efficient development using modern AI tools ✔ Clear communication & long-term reliability If you need a senior-level developer who combines deep experience with modern technologies and tools, I’d be happy to discuss your project.

☑ Top Rated Plus Freelancer ☑ 300k+ Earnings ☑ 13+ Years in Development ☑ 12000+ Hours Logged ☑ 100% Customer Satisfaction ☑ 100% Job Success Rate ☑ English: Fluent ☑ All Projects Completed with 5-star Rating ⭐⭐⭐⭐⭐ Transform your ideas into a fully functional product with my expertise! ☑ With over 13 years of professional experience working with various technology stacks, I am a Chrome Extension developer, Browser Extension developer and Full Stack developer ( React JS, Next JS, Node JS Nest JS, Graph QL, AWS, MongoDB, Firebase, MySql) with more than 12 years of professional experience with different technology stacks. ☑ Specialize in developing Chrome Extension, Browser Extension, E-commerce, CRM, Cloud platforms, Social networking apps, News portals, High-load platforms, and Facility management platforms. ☑ My specialties include: Chrome Extension developer, Browser Extension developer, ChatGPT, OPENAI, E-commerce, Social Media Apps, Web scraping, Logistics, Restaurant Apps, Food Delivery Apps, News Portals, Blogging, ERP Solutions, Payment Gateways (Stripe, PayPal, Google Pay, Apple Pay), Facebook Graph API integration, Google Maps Integration, web scrapping, Web services, and much more ☑ Tech Stack: My tech stack includes expertise in: Frontend technologies : JavaScript, React Native, React JS, Next JS, HTML, CSS Backend technologies: Node JS , Nest JS, Express, AWS, MongoDB, Firebase, MySQL ☑ I offer services such as: - Develop Back-end and Front-end functionality. - End-To-End Product Design and Development - Software Architecture Design - Consultation Please feel free to contact me if you have any questions. I am excited to work with you! Highlighted skills: Chrome Extension developer, Browser Extension developer, ChatGPT, OPENAI, E-Commerce Development, Fullstack development, Fullstack Web development, Fullstack Mobile development, Application Development, JavaScript (JS), Front-end Development, Back-end Development, React(React.js, ReactJS), React Native(ReactNative), Node.js( Node , NodeJS ), Next JS ( Next ), Nest JS Amazon Web Services (AWS), Firebase, MongoDB, MySQL, Data Binding, Directives, Multi-threaded scraper, Image scraping, DOM manipulation.

🥇 𝐓𝐨𝐩 𝐑𝐚𝐭𝐞𝐝 | 𝟏𝟓+ 𝐘𝐞𝐚𝐫𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 | 𝟓-𝐒𝐭𝐚𝐫 𝐑𝐚𝐭𝐢𝐧𝐠 | 𝟏𝟎𝟎% 𝐉𝐨𝐛 𝐂𝐨𝐦𝐩𝐥𝐞𝐭𝐢𝐨𝐧 𝐑𝐚𝐭𝐞 🥇, 𝐀𝐛𝐨𝐮𝐭 𝐌𝐞: I am a Full Stack Developer & AI/ML Engineer with 15+ years of hands-on experience delivering high-quality, scalable, and secure web & mobile applications. I specialize in MERN Stack, Next.js, Python/Django, Chrome Extensions, and AI/ML-powered solutions. My focus is not just writing code—but building production-ready systems that solve real business problems and scale with growth. I work closely with clients to understand requirements, propose the right architecture, and deliver clean, maintainable, and future-proof solutions. ✅ 𝐂𝐨𝐫𝐞 𝐂𝐨𝐦𝐩𝐞𝐭𝐞𝐧𝐜𝐢𝐞𝐬 𝐌𝐄𝐑𝐍 & 𝐍𝐞𝐱𝐭.𝐣𝐬: MongoDB, Express.js, React.js, Node.js, Next.js 𝐏𝐲𝐭𝐡𝐨𝐧 & 𝐃𝐣𝐚𝐧𝐠𝐨: Scalable backend & API development 𝐀𝐈 / 𝐌𝐋 & 𝐂𝐥𝐨𝐮𝐝: GCP, Vertex AI, Agent Building, LangChain, Hugging Face, OpenAI 𝐌𝐨𝐛𝐢𝐥𝐞 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭: React Native, Expo, React Native Paper 𝐃𝐚𝐭𝐚𝐛𝐚𝐬𝐞𝐬: MySQL, MongoDB, PostgreSQL, Oracle PL/SQL 𝐂𝐡𝐫𝐨𝐦𝐞 𝐄𝐱𝐭𝐞𝐧𝐬𝐢𝐨𝐧𝐬: Custom browser extensions & automation tools 📈 𝐃𝐞𝐯𝐞𝐥𝐨𝐩𝐦𝐞𝐧𝐭 𝐃𝐞𝐥𝐢𝐯𝐞𝐫𝐚𝐛𝐥𝐞𝐬 - Full-Stack Web Applications with API & database integration - AI/ML Solutions: Intelligent agents, chatbots, recommendation systems - Cloud AI Implementations: Vertex AI model deployment & automation - Mobile Apps: Cross-platform apps using React Native & Expo - Chrome Extensions: Productivity, automation & data-driven extensions - Database Architecture: Secure, optimized, and scalable designs - UI/UX Development: Responsive, modern, and intuitive interfaces - API Development & Integration: REST, SOAP & custom APIs 🛠️ 𝐖𝐡𝐲 𝐂𝐡𝐨𝐨𝐬𝐞 𝐌𝐞 ✔️ Top Rated Freelancer with proven delivery history ✔️ AI-Driven Expertise using the latest tools & frameworks ✔️ Reliable & Communicative – clear updates and fast responses ✔️ 100% Job Completion & 5-Star Feedback ✔️ Long-Term Mindset – I aim to become your trusted tech partner ✨ 𝐀𝐝𝐝𝐢𝐭𝐢𝐨𝐧𝐚𝐥 𝐏𝐞𝐫𝐤𝐬 - Free Post-Delivery Support for code-related issues - Quick Communication & availability across time zones - Strict Security & Data Privacy guaranteed 🚀 Let’s build something powerful together. If you’re looking for a reliable developer who understands both technology and business, I’d be happy to discuss your project and help bring your ideas to life. Warm Regards, Pankaj Sharma

I'm a professional Full-Stack Developer with extensive experience building high-quality applications across web, mobile, desktop, CRM, ERP, and various custom business solutions. I’m quick at understanding ideas and turning them into clean, scalable, and production-ready applications. ☑️ 8+ Years of Professional Experience ☑️ Top Rated Plus Freelancer on Upwork ☑️ 100% Job Success Rate ☑️ Proven Track Record Across 50+ Projects 🛠️ Technical Expertise ☑️Full-Stack Development Frontend: React.js, Vue.js, Next.js, JavaScript, HTML/CSS Backend: Node.js, Express.js, ASP.NET WebForms, ASP.NET MVC, ASP.NET Core, C# Databases: MS SQL, MySQL, PostgreSQL, Supabase, ADO.NET, Dapper ORM, Entity Framework APIs: REST APIs, Web API, Custom API Integrations Version Control: Git, GitHub ☑️Mobile App Development Android & iOS (Cross-Platform) Expo, React Native, Ionic (if applicable) API-driven mobile applications with cloud integration ☑️Cloud & DevOps Microsoft Azure, AWS, Google Cloud App Deployment, CI/CD Pipelines, Server Management Automation & Browser Extensions Selenium (Web/Data Scraping & Automation) Chrome & Firefox Extensions (Messaging, Scraping, Custom Workflows) ☑️Payment & Third-Party Integrations Stripe, PayPal, Razorpay, HubSpot, and other API integrations 🌐 Specializations ☑️ Full-Stack Application Development (Web + Mobile) ☑️ CRM, ERP & Custom Business Solutions ☑️ Google BigQuery & Google Sheet Automation ☑️ Payment Gateway Integrations ☑️ High-performance APIs & Cloud Deployments 💡 Why Work With Me? I convert ideas into fully functional, well-architected applications. Strong focus on clean code, scalability, and performance. Excellent communication & on-time delivery. 100% client satisfaction is always my priority. Whether you need to build an application from scratch, add new features, fix issues, or maintain an existing system, I can help. I look forward to building a long-term partnership 🤝 – Mayur Fefar

👋 Hi, I’m Dharmik — I build revenue-driven web products. With 6+ years of hands-on experience, I help startups and businesses launch powerful, scalable platforms using modern stacks and automation that saves thousands of manual hours. I don’t just code — I build systems that grow businesses. 🔥 What I Specialize In ✔ Chrome & Firefox Extensions (Advanced automation & scraping) ✔ MERN / Next.js SaaS Platforms ✔ Backend APIs & Dashboards ✔ Stripe Subscription Systems ✔ Twilio / Email / SMS Automation ✔ LinkedIn & Web Automation Bots ✔ Laravel & Custom PHP Systems ✔ High-Speed Web Scraping & Data Extraction 💡 Why Clients Choose Me ✅ I deeply analyze requirements before writing a single line of code ✅ I think like a product owner, not just a developer ✅ I focus on performance, security, and long-term scalability ✅ I suggest improvements that clients don’t even think of ✅ I deliver clean, maintainable, production-ready code Most developers build features. I build growth engines. ⚙️📈 🧠 My Core Tech Stack Frontend: React, Next.js, TypeScript, Tailwind, UI Libraries Backend: Node.js, Express, Nest.js, Laravel Database: MongoDB, MySQL, PostgreSQL Automation: Puppeteer, Playwright, Chrome APIs Integrations: Stripe, Twilio, OAuth, REST APIs Cloud & DevOps: AWS, Docker, CI/CD 🎯 How I Help Your Business • Turn your idea into a fully working SaaS • Automate manual workflows & lead generation • Build extensions that competitors can’t replicate • Increase conversions with fast, optimized apps • Fix broken systems and scale existing products ⚡ My Working Style I ask detailed questions, map out logic, and eliminate future problems before development even begins. This protects your budget and speeds up delivery. Clear plan → Clean build → Smooth launch ✅ ❤️ My Goal To build something so good for you that users love it, competitors envy it, and your revenue reflects it. 📩 Ready to build something powerful? Let’s discuss your project and make it happen.