Pros and cons
What Obsidian does especially well — and the limits to anticipate.
Pros
- Your data stay local (Markdown files), no dependency on a cloud service
- Free for personal use, no limits
- Knowledge graph to visualize connections between notes
- Very rich community plugins ecosystem
- Fast and high-performing even with thousands of notes
Cons
- Less intuitive interface than Notion for beginners
- No native real-time collaboration (requires paid Obsidian Sync)
- Learning curve to master Markdown and links
Obsidian: when it makes sense.
As soon as you start writing long-form articles or books.
Keep if
You are a writer/researcher. You want to own your data (Markdown files)
Challenge if
You need to collaborate as a team. You hate configuring plugins
