A local-first desktop tool for collecting, reading, and connecting ideas. Everything stays on your machine. No cloud, no subscriptions, no tracking.
Windows • Linux • macOS (coming soon)
Everything you need to think clearly about complex topics
Paste URLs to save web articles. Add notes, quotes, and images. Everything is cleaned and readable offline.
Use tags to categorize ideas. The app automatically discovers connections between related artifacts.
Find implicit connections through shared tags. Explore networks of related ideas without manual graph management.
All data stays on your machine. No cloud, no servers, no internet required. Your research is yours.
Warm colors, clean typography, and minimal UI. Designed for long-form reading and deep thinking.
Keyboard shortcuts, drag & drop, and native performance. Built for serious desktop workflows.
Free and open source. No registration required.
All releases: View on GitHub
macOS support coming soon • Build from source
Lumen Space is free and open source. If it helps your work, consider buying me a coffee to support continued development.
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