Obsidian — The Researcher's Second Brain

The note-taking app built for connected thinking. Link ideas, build a knowledge graph, and use markdown files you own forever. The best PKM tool for PhD students and researchers.

Official Site https://obsidian.md
Category Writing
Pricing Free
Rating ★★★★★ (5/5)

Why Obsidian Beats Every Other Note-Taking App for Researchers

After trying Notion, Roam, LogSeq, and plain folders, Obsidian is the one I keep coming back to. The reason is simple: your notes are plain Markdown files. No proprietary format, no cloud lock-in, no subscription required to export your own data.

For researchers this matters:

  • Your literature notes, meeting notes, and ideas stay with you forever
  • Git-friendy — version control your entire knowledge base
  • Works offline — no internet required during deep work sessions
  • Zotero Citations plugin pulls paper metadata directly into your notes

The Core Workflow

  1. Literature notes — one note per paper using the Zotero Citations plugin to auto-fill metadata
  2. Permanent notes — your own synthesis written in your own words
  3. Project notes — one folder per paper/thesis chapter, linking to relevant literature
  4. Daily notes — short logs of what you worked on, what you’re unsure about

Essential Plugins for Researchers

  • Citations — pulls Zotero references straight into Obsidian
  • Dataview — query your notes like a database (e.g., list all papers tagged #to-read)
  • Templater — fill in new note templates automatically
  • Obsidian Git — automatic commits and push/pull to GitHub
  • Slides — turn any note into a presentation (watch the video above)

Two Resources You Need

Video: Obsidian Slides — you can give a presentation from inside Obsidian, using the same Markdown notes you already have. No PowerPoint export required.

Video: Why Learn Markdown — before investing time in Obsidian, understand why Markdown is the foundational skill. It’s the same format used in Obsidian, Pandoc, GitHub, Hugo, and Jupyter Notebooks.