Turn note chaos into a structured knowledge base in 7 minutes
Use Claude to process raw notes and Obsidian to store and link them - all on your computer, for free
- 1.Download and install Obsidian from the official website. On first launch, select «Create new vault», choose a folder on your computer, and name it, for example, «Second Brain».
Obsidian stores all notes as local .md files - they stay on your computer and are not sent to the cloud.
Obsidian ↗ - 2.In the Obsidian sidebar, right-click the vault name -> «New folder». Create three folders: «Inbox» (for raw notes), «Notes» (for processed ones), and «Templates».
Folders help separate the flow: what is not yet processed from what is already structured.
Obsidian ↗ - 3.Open Claude in your browser. Paste the following prompt, replacing [YOUR_NOTES] with the text of your raw notes - a synopsis, article excerpt, ideas, or voice memo transcript.
Do not paste personal data, passwords, or confidential work information into Claude - processing happens on Anthropic servers.
Claude ↗About this toolPromptYou are my Second Brain assistant. Transform the raw notes below into a structured Obsidian Markdown note. Requirements: 1. A clear H1 title 2. A 2-3 sentence TL;DR summary under a ## Summary heading 3. Key ideas organized under ## headings as bullet points 4. Action items under ## Actions as checkboxes (- [ ]) 5. At the bottom: tags as #keyword 6. Wrap important concepts in [[double brackets]] so they become links in Obsidian 7. Keep it concise - no filler text Raw notes: [YOUR_NOTES]
What this prompt doesThe prompt asks Claude to turn your raw text into a structured Markdown note: with a title, brief summary, key ideas, tasks, and tags. Double brackets [[ ]] will become clickable links between notes inside Obsidian. Replace [YOUR_NOTES] with your text. - 4.Copy the entire Claude response. In Obsidian, create a new note in the «Notes» folder (Ctrl/Cmd+N), name it after the heading from the response, and paste the text.
If Obsidian shows a hash symbol instead of an H1 heading - enable Settings -> Editor -> Default view for new tabs: «Editing».
Obsidian ↗ - 5.Click any link in double brackets - Obsidian will prompt you to create a new note with that name. Create 2-3 such notes and fill them with a short description.
Open Graph View (the graph icon on the left or Ctrl/Cmd+G) to visually see how notes are linked.
Obsidian ↗ - 6.Repeat steps 3-4 for each new batch of notes. All processed cards go to the «Notes» folder, and links between them grow automatically.
In a week, you will have dozens of linked notes that can be searched via Ctrl/Cmd+Shift+F by any word.
Obsidian ↗
- freeObsidian (Personal use)Obsidian is completely free for personal use - no limit on the number of notes; all files are stored locally.
- freeClaude (Free tier)Claude has a free plan with a daily message limit - this is enough to process a few notes a day. The paid Pro plan expands the limits; see current prices on the Anthropic page.
AI services change fast - interfaces and free limits may differ from what's described.