Foam
Your knowledge graph. For you and your AI.·foambubble.github.io
Foam is a tool that turns a plain Markdown knowledge base into a queryable graph and a publishable website, working natively inside VS Code. It provides wikilinks, backlinks, block references, embeds, daily notes, templates and a graph visualization for organizing notes stored as local .md files. It also exposes the notes graph to AI agents (via foam-mcp) so tools like Claude Code and Cursor can traverse links, tags and backlinks rather than just search flat text. Foam is open source and MIT licensed, with no cloud service or subscription required.
What it's for
Features 15
- Automatic link updates on note rename
- Backlinks showing notes linking to current note
- Block-level references
- Daily notes created from a template
- Embeds/transclusion of note content
- foam-cli for terminal search, inspect and management
- foam-mcp for AI agent graph traversal (MCP-compatible)
- foam-query for programmatic graph queries
- Graph visualization of the knowledge base
- Inline and reference-style footnotes
- Inline tags for organizing notes
- Reusable templates for meetings, projects, people, etc.
- Smart Folders (saved queries as filtered views)
- VS Code native definitions, references, syntax highlighting, peek and diagnostics
- Wikilinks (double-bracket note linking)
At a glance
Integrations
Pricing
Foam is described as free, open source, and MIT-licensed with no subscriptions or vendor lock-in.
No subscriptions, no vendor lock-in, no cloud service.