EdTech SaaS

ExamFlow

ExamFlow is a production-ready multi-tenant EdTech SaaS for institutions and educators. It covers the full assessment lifecycle: content hierarchy (subjects/topics/lessons), question banks, exam builder & engine, student learning portal, analytics, certificates, manual grading, organizations with roles, Stripe billing, email notifications, and complete English/Arabic RTL experience.

Live Demo GitHub

Technologies

React
TypeScript
Node.js
Express
MongoDB
Tailwind CSS
i18next
JWT
Stripe
Resend
Zod

Key Features

Multi-tenant organizations with role-based access
Content hierarchy: Subjects → Topics → Lessons
Question banks + Exam builder & timed exam engine
Student Learn portal with lesson content
Analytics dashboards & certificates
Manual grading + autosave short answers
Full EN/AR + RTL support
Stripe billing (Checkout, Portal, Webhooks) + plan limits
Email notifications (publish, grade, cert, invite)
White-label ready design system

Challenges

Building a scalable multi-tenant architecture with organization isolation
Supporting full RTL layout and bilingual content across complex flows
Designing a reliable exam engine with timing, autosave, and grading
Integrating billing, email, and role permissions without coupling

Problems & Solutions

Membership role as tenant source of truth + permissions module
Centralized i18n with direction-aware layouts and design tokens
Exam session state, autosave, and server-side validation
Stripe webhook handling + mock billing fallback for development

Previous← E-Commerce Full Stack NextGym Website →