Synapse: Offline Note Taking

Synapse is a distraction-free, privacy-first markdown editor and brain-mapping tool designed to help you organize your thoughts, notes, and ideas completely offline. Whether you are drafting a project, studying for exams, or building a personal knowledge base, Synapse visually connects your notes together in a fluid, interactive web. WRITE IN RICH MARKDOWN Write effortlessly with an elegant Markdown editor. Use a built-in formatting toolbar for H1, H2, H3 headings, bold, italics, bullet lists, and interactive checklists. Toggle instantly between the raw editor and a beautiful, high-fidelity real-time preview tab. BUILD YOUR KNOWLEDGE GRAPH Connect notes together seamlessly using intuitive internal wiki-links. Explore your ideas visually using an interactive "Brain Map" Graph View. Pan, zoom, and navigate your cognitive web to find unexpected relationships between your thoughts. 100% OFFLINE & PRIVACY-FIRST All your notes, data, and structures are saved strictly on your device. Zero cloud servers, zero tracking, and zero telemetry. Your data never leaves your control. Built-in Data Management: Export your entire vault as a raw JSON file or import it back anytime. Wipe your vault completely with a single action, leaving no hidden traces. A CLEAN, MINIMALIST CANVAS Fully adaptive light and dark modes matching your system's design. Clutter-free writing environment to help you focus on your thoughts.