Custom Web Application Development
High-performance, full-stack web applications for businesses that have outgrown generic tools
React • Astro • Next.js • Node.js • Cloud Infrastructure
From SaaS platforms to medical tools, from internal dashboards to e-commerce extensions
Applications That Automate, Centralize & Accelerate
We build scalable, secure custom web applications using modern technologies like React, Astro, Next.js, and Node.js. Whether you're launching a SaaS platform, building internal business tools, or creating complex e-commerce systems, we deliver applications that solve real business problems.
Frontend
- • React
- • Astro
- • Next.js
- • Tailwind CSS
Backend
- • Node.js
- • Serverless Functions
- • RESTful APIs
- • GraphQL
Databases
- • Firebase Firestore
- • AWS Databases
- • MySQL
- • PostgreSQL
Infrastructure
- • Cloudflare Pages/Workers
- • Vercel
- • AWS
- • Firebase Hosting
What We Build
Core Application Features
- User authentication & role management
- Admin & client dashboards
- Secure data management
- API integrations (Stripe, Shopify, HubSpot, AI models)
- Payment processing
- Real-time notifications
- File uploads & document management
- Search & filtering systems
- Responsive UI & PWA capability
Advanced Capabilities
- Multi-tenancy (SaaS)
- Complex logic engines (quotation tools, configurators)
- Medical/clinical data applications
- E-commerce extensions (B2B portals, stock tools)
- Real-time collaboration features
- Automated PDF generation
- AI-powered features inside the app
Common Use Cases
SaaS Platforms
Multi-tenant applications with subscription billing and user management
Internal Dashboards
Business intelligence tools and admin panels for data-driven decisions
Healthcare & Medical
HIPAA-compliant patient management and clinical data systems
Booking Systems
Scheduling and reservation platforms with calendar integration
B2B Reseller Systems
Wholesale portals with custom pricing and inventory management
E-commerce Applications
Complex product configurators and quotation systems
Payment Automation
Automated billing, invoicing, and payment processing tools
AI-Augmented Apps
Applications enhanced with AI capabilities and automation
Our Development Process
Phase 1 — Discovery & Requirements
Workshops, specifications, architecture planning, and technical feasibility assessment.
Phase 2 — UX/UI Design
Wireframes, Figma UI designs, user flows, and database schema design.
Phase 3 — Full-Stack Development
React/Next.js/Astro frontend, Node.js backend, API integrations, and database implementation.
Phase 4 — Testing & QA
Cross-device testing, functional testing, integration testing, and performance optimization.
Phase 5 — Deployment & Launch
Cloud hosting setup (Cloudflare/Vercel/AWS), CI/CD pipeline, training, and warranty period.
Phase 6 — Post-Launch Support
Monitoring, optimization, feature iterations, and ongoing maintenance.
Is This Right for You?
Perfect Fit
- ✓ Growth-focused SMEs
- ✓ Technical founders building SaaS products
- ✓ Business owners needing custom internal tools
- ✓ E-commerce brands requiring reseller portals or configurators
- ✓ Budgets starting from €5,000+
Not a Fit
- ✗ Hobby projects without business goals
- ✗ Unclear ideas without defined requirements
- ✗ Budgets below €5,000
- ✗ Projects that can be solved with no-code tools
Why Choose Perel Web Studio
Real Full-Stack Development
We build real applications with proper architecture—no no-code shortcuts that limit your growth.
Modern Tech Stack
Strong expertise in React, Astro, Next.js, Node.js, and Cloudflare for fast, scalable applications.
Performance & Scalability
Built for speed and growth. Your application will handle increased traffic and users without breaking.
Transparent Pricing
European project management with competitive budgets through our Sri Lanka development team.
Fast Delivery
Modern architecture and agile development means faster time-to-market for your application.
Strategic Partnership
We become your technical partner, helping you make smart decisions as your application grows.
Featured Case Study
Invoice-QR.com: From Concept to Production SaaS in 3 Weeks
Built the tool that didn't exist—a full-stack SaaS platform for generating European payment QR codes. From personal pain point to revenue-generating product.
The Challenge:
No online tool existed for adding EPC payment QR codes to PDF invoices. Businesses using Word/Excel for invoicing couldn't enable mobile banking scan-to-pay.
The Solution:
- React + Firebase full-stack SaaS application
- Stripe subscription integration (freemium model)
- AI-powered QR code validation system
- Multi-country EPC compliance (5 European markets)
- Dual applications: invoice creation + supplier payment
Results:
- • Production SaaS deployed in 3 weeks
- • 40% faster payments for businesses
- • Daily use by Perel Web Studio for client invoicing
- • Revenue-generating freemium model
Technology Stack
Ready to Build a Custom Web Application?
Book a free strategy call to review your idea and map the fastest path to a working application
Let's create something together
Get a free custom quotation tailored to your project