30 open-source projects similar to etar-group/etar-calendar, ranked by shared indexed features. Tags may describe platforms or build tools rather than the same primary purpose. Check each project’s use case, license, and deployment requirements before treating it as a replacement.
An open source app to remember birthdays and events without having to rely on apps like Facebook or Google Calendar or set alarms manually.
Joplin is an open-source, cross-platform note-taking application designed for secure, private knowledge management. It functions as a local-first productivity platform, maintaining a complete relational database on the user's device to ensure offline availability and high-performance data retrieval. The application prioritizes data sovereignty by implementing an end-to-end encryption layer, which secures all information locally with a master key before any synchronization occurs. The platform distinguishes itself through a delta-based synchronization engine that transmits only specific file c
Butterfly is a note-taking app where your ideas come first. You can paint, add texts, and export them easily on every device. This app works on Android, Windows, Linux, and in the web.
📝 StoryPad is a beautiful, privacy-first, open source journal & diary app designed for people who value simplicity, minimalism, and control over their personal data.
Omni-Notes is a mobile note-taking application and personal knowledge management tool used for creating and organizing text notes, checklists, and sketches. It functions as a multimedia knowledge base that integrates voice input, images, and audio files to maintain a searchable digital archive. The application utilizes a tag-based filtering system to group and search for stored information using metadata and categories. It further extends productivity by providing home and lock screen widgets that expose note snapshots and shortcuts for rapid access. The system supports the creation of struc
Material To-Do App
Modern Android calendar with CalDAV sync: iCloud, Nextcloud, and more. Privacy-first, no tracking. On F-Droid.
uHabits is a habit tracking application and behavioral progress tracker designed to monitor daily routines and build long-term consistency. It utilizes mathematical decay formulas to calculate habit strength, rewarding consistent activity while limiting the impact of occasional misses. The system includes a customizable scheduling engine that defines repetition patterns for recurring goals, supporting both simple daily and complex weekly intervals. Users can interact with their data via a home screen widget dashboard, allowing them to monitor status and mark tasks complete without opening the
This project is a comprehensive collection of high-performance UI components and SDKs designed for building data-rich, cross-platform applications in Flutter. It provides a unified library of modular widgets and processing tools that enable developers to implement complex interface requirements, including advanced scheduling, tabular data management, and interactive data visualization, using a consistent declarative architecture. The library distinguishes itself through specialized, enterprise-grade capabilities that extend beyond standard UI elements. It includes a robust document processing
react-big-calendar is a programmable grid component for React applications used to render professional calendars and interactive scheduling interfaces. It provides a visual system for managing and visualizing appointments and events through daily, weekly, and monthly grid views. The component is designed to be localizable and themeable, allowing for customized event visualization and date formats that match specific linguistic and cultural preferences. It utilizes a date-library agnostic interface, decoupling core logic from specific time-handling libraries via an adapter layer. The project
Clock is a customizable, privacy‑first, open-source clock app inspired by AOSP Clock. It combines modern design, powerful features, and transparency — giving you full control over your time.
ArchiveBox is a self-hosted archiving tool designed for personal digital preservation and research data management. It functions as an automated web preservation engine that monitors URL inputs from bookmarks, browser history, or manual entries to capture and store permanent, offline copies of web content. By utilizing headless browser automation, the system renders dynamic web pages to ensure that captured snapshots, PDFs, and media assets remain accurate and accessible even if the original source disappears. The project distinguishes itself through a modular extractor pipeline and a task-qu
I feel like the days of traditional diaries are over. Not only are they inconvenient to carry around, but they are also not very secure. Thus, I decided to create a digital diary that is secure and easy to use.
Convert Google keep notes to markdown notes
Model Context Protocol server for Slite integration - search and retrieve notes from your Slite workspace
Saber is a cross-platform handwriting application and digital ink organizer designed for creating, storing, and managing handwritten notes. It functions as an encrypted note synchronization tool that keeps private content consistent across phones, tablets, and computers. The application features a handwriting interface framework that supports digital document annotation and a hierarchical file system for arranging notes into nested folders. It utilizes client-side end-to-end encryption to secure data before transmission and synchronizes state across devices via a cloud relay. The system incl
This project is a lightweight Python scheduling library used for managing recurring jobs and automating the execution of functions within a single process. It serves as an event-based task scheduler that triggers functions at specific intervals or weekdays. The library utilizes human-readable timing syntax to schedule periodic function calls. It supports the organization of timed workflows through job tag filtering and provides mechanisms for scheduler state inspection to track planned execution times. The system handles both periodic and specific job scheduling with timezone support. It inc