HelixNotes

md files on their own devices. It emphasizes privacy and user control by ensuring that nothing leaves the user's disk unless explicitly enabled. The tool is open source and is available for Linux, Windows, macOS, and Android, making it accessible across major desktop and mobile platforms.

The application features a clean WYSIWYG editor for writing in plain Markdown, with a source mode for those who prefer to work directly with raw text. Users benefit from slash commands, table support, code blocks with syntax highlighting, and live KaTeX math rendering. HelixNotes also includes a comprehensive task management system: it automatically collects all checklist items from across notes into a unified Tasks view, allowing users to set priorities and due dates, manage tasks in a list, or organize them visually on a calendar.

For organizing and connecting ideas, HelixNotes supports linking notes using wiki-style [[wiki links]], which generates a graph view that visually maps the relationships between notes. Users can hover over nodes in the graph to trace connections and discover how their ideas interrelate. The application also offers a built-in journal feature called Daily Notes, providing a calendar interface where each date corresponds to a dedicated note. This is useful for daily standups, journaling, or capturing thoughts over time.

Customization is a key aspect, with light and dark modes, 29 built-in color palettes (including Solarized, Nord, Catppuccin, Gruvbox, Synthwave, and One Dark), and the ability to create, edit, and share custom themes as JSON. 0 open-source license, and its source code is available for users who wish to contribute or modify the application. The tool is built using Svelte, Rust, and Tauri technologies.