Pay Tracker — Invoice & Cashflow Platform
A full-stack invoice and cashflow management platform for freelancers and small businesses. GST calculations, professional PDF invoices, lifecycle tracking, Razorpay plus dynamic UPI QR payments, automated overdue reminder emails via Node-cron and Google OAuth2, and analytics dashboards built with Recharts. Secured with JWT access/refresh tokens in httpOnly cookies and role-based access control.


