Innovative AI Solutions | AI Development, Web & Mobile Apps – Delhi, India

Get Free Consultation

We'll get back to you within 24 hours.

Delhi NCR, India

Best JavaScript Development
Company in Delhi

React.js, Next.js, Node.js, and full-stack JavaScript applications — built by experienced JS developers based in Delhi. Modern web apps that are fast, SEO-ready, and scalable.

Get Free JS Consultation View Our Projects
100+
JS Projects
React & Next.js
Frontend Stack
Node.js
Backend Stack
₹24,999
Starting Price
100%
Code Ownership
What We Build

JavaScript Development Services in Delhi

Full-stack JavaScript from a single Delhi team — no frontend agency for React, no separate backend company for Node. One team, one invoice.

React.js Web Apps

Single-page applications with React 18, hooks, Redux/Zustand, and React Query. Fast, interactive UIs with component-driven architecture.

Next.js Applications

SSR, SSG, and ISR with Next.js 14. Built for SEO, performance, and edge deployment. The default choice for modern production web apps.

Node.js Backend APIs

RESTful and GraphQL APIs with Node.js and Express/Fastify. JWT auth, rate limiting, WebSockets, and Prisma ORM — production-grade from day one.

Real-Time Applications

Live dashboards, chat systems, and collaboration tools using Socket.io and WebSockets — with Redis pub/sub for multi-server scaling.

E-Commerce with JS

Headless commerce with Next.js storefronts, Stripe/Razorpay payments, cart management, and CMS integration (Sanity, Contentful, or custom).

AI-Integrated JS Apps

LLM-powered features in your JavaScript app — streaming chat interfaces, AI search (embedding + vector), and agentic tools via Node.js backends.

Tech Stack

JavaScript Ecosystem We Master

We work across the full JavaScript ecosystem — from browser-side React to server-side Node.js, mobile React Native, and deployment on Vercel, AWS, or your own server.

Discuss Your Project

Frontend

React 18Next.js 14TypeScriptTailwind CSSZustandReact Query

Backend

Node.jsExpress.jsFastifyGraphQLPrisma ORMSocket.io

Database & Cache

PostgreSQLMongoDBRedisSupabaseFirebase

Deploy & DevOps

VercelAWS EC2/LambdaDockerGitHub ActionsNginx
Why Choose Us

Why We're Delhi's Best JavaScript Development Company

⚛️

Full-Stack JS Expertise

Same team handles React frontend and Node.js backend. No handoff issues, no integration delays — the whole app is owned by one team.

🚀

Next.js SEO-Ready

We default to Next.js for production apps — server-side rendering means Google indexes your pages properly. No SPA SEO headaches.

📱

React Native for Mobile Too

Need a web app and mobile app? We use React/Next.js for web and React Native for iOS/Android — same component patterns, half the cost of separate teams.

🔒

TypeScript by Default

All new projects use TypeScript. Fewer runtime bugs, better IDE support, and easier handover to your internal team. No legacy JavaScript spaghetti.

🏙️

Delhi Office

Our team is in Shakurpur, Delhi. Come in for a meeting. You get direct access to the developers writing your code — no account managers in between.

🤖

AI Features Available

We integrate LLM-powered chat, AI search, and agentic tools directly into your JavaScript application using our Python AI backend expertise.

How We Work

Our JavaScript Development Process

Agile development with weekly React previews so you can test the actual UI as it's built — not just see screenshots.

Start Your Project
1

Tech Stack Decision & Architecture

We map your requirements to the right JS stack — Next.js vs. React SPA, REST vs. GraphQL, which database, deployment target.

2

Component Design & API Contract

Figma UI components and OpenAPI spec defined upfront. Frontend and backend can be developed in parallel without blockers.

3

Agile Sprint Development

2-week sprints. Working Next.js build deployed to a staging URL at the end of each sprint — you test on your real device.

4

Testing — Jest, Cypress & Lighthouse

Jest unit tests, Cypress end-to-end tests for critical flows, and Lighthouse performance audit before launch. 90+ score guaranteed.

5

Launch & Monitoring

Deployed to Vercel/AWS, with error tracking (Sentry), uptime monitoring, and Google Analytics 4 set up before go-live.

6

Handover with Documentation

Full source code on GitHub, component storybook (if applicable), deployment guide, and API documentation handed over.

Pricing

JavaScript Development Cost in Delhi

Fixed-price packages. No hourly billing. No surprise invoices.

Landing Page / UI

₹24,999

one-time fixed price

  • Next.js or React
  • Tailwind CSS responsive design
  • Contact form + CRM hook
  • 90+ Lighthouse score
  • Vercel deployment
  • 30 days support
Get Quote
Most Popular

Full-Stack JS App

₹99,999

one-time fixed price

  • Next.js 14 frontend
  • Node.js + Express backend
  • Auth (JWT + OAuth)
  • PostgreSQL + Prisma ORM
  • Payment integration
  • Admin dashboard
  • 60 days support
Get Quote

SaaS / Enterprise

Custom

scoped per requirements

  • Multi-tenant architecture
  • Microservices / BFF pattern
  • Real-time features (WS)
  • AI/LLM integration
  • CI/CD + DevOps setup
  • SLA-backed maintenance
Request Proposal

Need a JavaScript Developer in Delhi?

Free 30-minute consultation. Get a fixed-price estimate for your React, Next.js, or Node.js project — same day.

Book Free Consultation Call Us

JavaScript Development FAQs

How much does JavaScript development cost in Delhi?
A Next.js landing page starts from ₹24,999. A full-stack JavaScript web application with Node.js backend costs ₹99,999. SaaS and enterprise applications are scoped individually — typically ₹1,50,000–₹5,00,000. All prices are fixed, not hourly.
Do you build both frontend and backend in JavaScript?
Yes — we are a true full-stack JavaScript team. React/Next.js frontend and Node.js/Express backend are built by the same team. No handoff between separate agencies. This means faster delivery and fewer integration issues.
React.js or Next.js — which do you recommend?
Next.js for almost everything in production. It adds server-side rendering, file-based routing, image optimization, and Edge deployment on top of React — which means better SEO, faster load times, and better developer experience. We use plain React SPA only for internal dashboards where SEO doesn't matter.
Can you add AI features to my existing JavaScript application?
Yes. We regularly add AI chat interfaces, AI search (using embeddings), and LLM-powered automation to existing React and Node.js applications — without rebuilding the entire app. The AI backend typically runs as a separate Python FastAPI service called from your Node.js API.
Do you use TypeScript for JavaScript projects?
Yes, TypeScript is our default for all new JavaScript projects. It catches bugs at compile time, makes refactoring safer, and makes code easier to hand off to your team. We can also migrate existing JavaScript codebases to TypeScript incrementally.
How long does a full-stack JavaScript project take?
A Next.js landing page or UI component takes 1–2 weeks. A full-stack web application takes 6–12 weeks. A SaaS product with multi-tenancy and advanced features takes 12–20 weeks. We give you a milestone-based timeline with exact delivery dates before the project starts.

See all AI development questions →

© 2026 Innovative AI Solutions. All rights reserved. | AI Development Company in Delhi | C-35, JJ Colony, Shakurpur Delhi, India