Category Hub
Knowledge & Research
Personal knowledge management (PKM), markdown note-taking, semantic search, and research databases.
freemium
Obsidian
Safe
A powerful and extensible knowledge base that works on top of your local folder of plain text Markdown files.
OS: windows macos linux android ios
Companion Web Utilities
Need quick client-side tasks? Try these companion utilities right in your browser:
ToolMatrix360 Cloud
Pro SaaS
AI Lead Intelligence Suite
Autonomous B2B pipeline qualification and intent scoring engine.