Description: Hypernotes is a free, open-source note taking and knowledge management software. It allows users to create wiki-style interconnected notes and build a personal knowledge base.
Type: software
Pricing: Free
Description: Mermaid is an open-source tool that allows you to create diagrams and visualizations using text and code. It is designed to integrate with documentation sites and wikis to add charts and graphs through a simple markdown-inspired script language. The key benefit is the ability to generate complex diagrams that are portable, themeable, and easy to edit programmatically.
Type: software
Pricing: Open Source