Open Notes — Open Source Notes App

OpenNotes is a privacy-focused, offline note-taking application designed to keep your thoughts organized without compromising your data. It provides a fast, clean interface packed with powerful formatting tools. All your notes are stored exclusively on your local device. The app does not request internet access and contains no trackers or analytics. Features: Native Markdown rendering for rich text formatting, including headers, checklists, code blocks, and quotes. Seamless image support to embed photos directly alongside your text. Organization tools that allow you to color-code, pin, and sort your notes. Home screen widgets for quick access to your most important notes. Built-in privacy options to lock the app behind biometric authentication and block the Android system from taking screenshots of your data. Personalize the app with dark and light themes, and choose your favorite color for the home screen icon. Full offline backups that let you export and import your complete note library as a single ZIP file. Completely free and open-source with zero invasive permissions.