Penzu is an online journaling platform that allows users to create and maintain private journals. It offers a user-friendly interface where individuals can write entries, add photos, and organize their thoughts securely. Penzu emphasizes privacy, providing users with options to lock their journals with passwords. The platform is accessible via web browsers and mobile apps, making it convenient for users to journal anytime and anywhere. Penzu also includes features like reminders and the ability to search through past entries, helping users reflect on their experiences and track personal growth over time.