WikiBrain vs Obsidian
What WikiBrain exports is an Obsidian vault. The question is who writes it, where it lives, and who can read it.
Choose Obsidian if
You like local files, the plugin ecosystem and organising by hand; you already have an Obsidian workflow and AI is an assistant.
Choose WikiBrain if
You want to drop sources in and have the AI compile the wiki, shared between your phone, Cursor and Claude, without maintaining sync and plugins yourself.
| Feature | Obsidian | WikiBrain |
|---|---|---|
| Who writes | You, or community plugins (including LLM-Wiki style compilers) | Built in: one click after a source lands in raw/, or hand it to your agent |
| Where the data lives | Local vault; Sync is a paid add-on | Cloud (Singapore), usable from any browser or phone; export the whole vault any time |
| Agent access | No official MCP; community MCPs need the desktop app running | Built-in MCP server, token or OAuth, always on |
| Graph, backlinks, versions | Graph and backlinks are native; versions via Sync or git | All included: graph (filters, timeline), backlinks, a version per save with rollback |
| Bibliography | Via Zotero plugins | DOI/BibTeX/CSL in and out, [@citekey] citations, Zotero sync |
| Price | App free; Sync about US$4–8/month; AI plugins extra | Free forever; Pro US$6/month or 60/year; model cost is yours |
| Lock-in | None | None: Markdown zip export, open source, self-hostable |
Trade-offs we admit
- If your whole workflow lives in Obsidian, it wins on offline use, plugins and customisation; WikiBrain’s offline mode is a shell only for now, a full offline copy is planned.
- They are not exclusive: many people compile in WikiBrain and export a zip into Obsidian to read.
- Prices are as published on Obsidian’s site.
Start free (14-day Pro trial)Their facts checked on 2026-09-04 · Obsidian Website