Open Source JavaScript Productivity Apps for Android

Joplin is a free and open source note-taking and to-do application that can handle a large number of notes in Markdown format, organize them into notebooks and synchronize them with various cloud services. All notes can also be copied, tagged, searched and modified directly from the app or through your own text editor. Notes that are exported from Evernote can be imported into Joplin, be it formatted content, resources, complete metadata or plain Markdown files. When notes are synchronized with cloud services, notebooks, tags and other metadata can easily be moved, inspected or backed up as plain text files. Supported cloud services include Nextcloud, OneDrive, Dropbox and WebDAV. Joplin is available for Windows, Linux, macOS, iOS and Android, with three types: desktop, mobile and terminal. All of them have similar user interfaces and can be synchronized with each other.

Get motivated to achieve your goals. Now is the time to have fun while completing your tasks! Join more than 4 million Habiticans and improve your life one task at a time. Habitica is a free habit building and productivity app that takes your real life as a game. With in-game rewards and punishments to motivate you and a strong social network to inspire you, Habitica can help you achieve your goals to be healthy, hardworking, and happy. Stay responsible by following and maintaining your Habits, Daily Tasks and To-Do Tasks with habitica's mobile apps and the website, both easy to use. Cross off tasks to level up your Avatar, and unlock in-game features like battle armor, mysterious pets, magical abilities, and even missions! Fight monsters with other Habitica users! Use the Gold you earn to buy in-game or custom rewards, like watching an episode of your favorite TV series.

Zulip is a powerful open source group chat application that combines the immediacy of real-time chat with the productivity benefits of a threaded conversation model. Zulip’s unique threading model allows users to easily catch up on important conversations, helping to save time and increase productivity.

PinVault Pro is a professional-grade browser extension that revolutionizes Pinterest image downloading with AI-powered technology. The extension provides intelligent bulk selection, auto-scroll functionality, and maintains HD quality downloads while respecting Pinterest's terms of service. 🎯 Core Features: • Visual checkbox overlays on Pinterest images for intuitive selection • AI-powered auto-scroll with smart content detection • Bulk download capabilities with real-time progress tracking • HD quality preservation in original resolution • Modern glassmorphism interface design • Privacy-focused architecture with no external servers • Cross-browser compatibility (Firefox, Chrome, Edge, Opera) • Real-time synchronization between popup and sidebar interfaces 🌍 Universal Browser Support: • Firefox: Official Mozilla Add-ons Store approval (61.4 KB package) • Chrome/Edge: Manifest V3 compatible (60.0 KB package) • Opera: Manifest V3 compatible (60.3 KB package)

Boostnote is an open source note-taking app for programmers. Apps available for Mac, Windows, Linux, Android and iOS. Built with Electron, React + Redux, Webpack and CSSModules.