This project presents SecureLearn Browser, a secure browser integrated with a Learning Management System (LMS) to ensure examination integrity while supporting flexible learning. It follows a dual-mode architecture with Practice Mode and Exam Mode, each designed for different educational needs. Users access the system through a centralized login interface. After authentication, Practice Mode allows unrestricted access to course materials, including Full Stack Development and HTML modules, enabling self-paced learning without time or security restrictions. In contrast, Exam Mode enforces strict controls such as time limits, password protection, and browser lockdown to prevent navigation, screen capture, and application switching. Based on Safe Exam Browser (SEB) principles, the system creates a secure environment for assessments while maintaining a user-friendly space for learning. The integrated HTML course supports hands-on practice within the same platform. Overall, the system balances security and flexibility by providing a unified platform for both learning and examinations, eliminating the need for separate tools.