Obsidian is a personal knowledge base and note-taking app that operates on Markdown files. It allows users to make internal links for notes and to visualise the connections as a graph. It is designed to help users organise and structure their thoughts and knowledge in a flexible, non-linear way. In many ways, it is similar to apps like Notion, but offers a free plan for non-commercial usage.
Obsidian stores notes on the user’s device, so they can be accessed quickly, even when offline. There are hundreds of plugins and themes available to customise the experience, and the app uses open, non-proprietary files, so users are never locked in.
