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Constella

The second brain app with a visual infinite graph and AI

Freemium Personal Knowledge Management

Overview

Constella is a next-generation knowledge management application that replaces traditional folder-based systems with an intelligent, visual canvas. Notes are displayed as interconnected nodes on an infinite graph, allowing you to see relationships and patterns across your knowledge base. The AI-powered system automatically surfaces related past notes while you type, helping you connect ideas you might have forgotten. With semantic search that understands meaning rather than just keywords, instant capture for thoughts and links, and a local-first architecture for privacy, Constella serves as a true second brain. The Stella AI sidekick assists with analysis, ideation, and content creation, while the Horizon mobile companion app captures thoughts and meeting notes on the go. Import from Readwise, Obsidian, Notion, Apple Notes, or markdown files.

Architecture: Apple Silicon, Intel

Key Features

  • Visual graph interface displaying notes as interconnected nodes
  • AI-powered surfacing of related notes while typing
  • Semantic search by meaning, not just keywords
  • Instant capture with support for links and file attachments
  • Local-first architecture with optional cloud sync
  • Local AI models for privacy-focused search
  • Stella AI sidekick for analysis, ideation, and content creation
  • Horizon mobile companion app for on-the-go capture
  • Import from Readwise, Obsidian, Notion, Apple Notes, markdown
  • Encrypted cloud buckets for secure sync
  • Infinite canvas for spatial note organization

Tags

searchrecommendationchattext generation