SaaS Platform

Stock Management & POS Platform

Multi-tenant SaaS for retail shops with full inventory management, billing and POS system supporting tax invoices, cash memos and estimates. GST calculations, customer credit tracking, role-based access control, bulk CSV import, and admin portal with subscription management. 40+ API endpoints, 32 UI components.

Live Demo

Built With:

React 19Node.jsExpressMongoDBTypeScriptTailwind CSS

Tax Invoice

Plywood 8mm₹1,240
Adhesive 5L₹ 620
Hinges ×12₹ 360
GST incl.₹2,220
POS & Inventory
Back to Services
40+ APIs
endpoints
32 UI
components
3 Types
bill Types
12 RBAC
modules

Core Features by User Role

Inventory & Billing

  • Full CRUD inventory with bulk CSV import (up to 3000 items)
  • 3 bill types: Tax Invoice, Cash Memo, Estimate with auto-increment
  • GST/CGST/SGST calculations with round-off
  • Split tender payments: Cash + UPI + Card
  • Customer udhaar (credit) tracking with FIFO payments
  • Hold/resume up to 20 bills simultaneously

Admin & Management

  • Multi-tenant architecture with shop-scoped data isolation
  • RBAC with 12 modules x 4 actions permission matrix
  • Shop onboarding via invitation with email verification
  • Subscription management and plan controls
  • 40+ API endpoints with comprehensive middleware

UI/UX Features

Modern POS interface with barcode scanning support
Dashboard with today's KPIs, revenue charts, inventory status
32 production-ready UI components
Thermal receipt generation (80mm print)
Advanced search, filter, and sort across all data

Technical Features

Express 5 with Mongoose 9 on MongoDB Atlas
JWT authentication with refresh token rotation
Rate limiting, bcrypt hashing, session management
React 19 with Vite 8, Tailwind 4, Recharts
40+ REST API endpoints with full CRUD operations

Key Highlights

✅Multi-tenant SaaS with subscription management
✅Full POS with 3 bill types and GST calculations
✅40+ API endpoints with RBAC permission matrix
✅32 production-ready UI components
✅Bulk CSV import for up to 3000 inventory items
✅Customer credit tracking with FIFO payments

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