Filamental turns a folder of Markdown files into a structure you can walk through in three dimensions. Every node is a document. Every connection is a reason.
Unlimited spaces, linked across your machine. Twenty nodes in each, and the Bridges between them never count against that. Plenty of people prefer working this way: discrete structures joined at the edges, rather than one vault that never stops growing.
Free. Personal plan.
A link, or a single HTML file. Nothing to install at the other end, no account to make, no viewer to download. Nobody else in this category gives you that.
$120 a year. Professional plan.
It made sense in the meeting. By Thursday it is a picture of some boxes.
Everything is in there somewhere. Finding the part that matters quietly became somebody else’s problem.
You didn’t lose the work. You lost the shape of it.
It isn’t you. The tools flattened the problem before you ever got to it.
Your files are Markdown on your own disk. Open them in anything, move them anywhere, and keep them the day you stop paying us.
There is no account to create and no server holding your work. A service wants to know your business. This one doesn’t get to.
Anything you share is encrypted before it leaves your machine. We cannot read it, with or without the password. That is not a policy we could change our minds about.
You are not the product. We like money as much as anyone does. We just don’t think selling your work is a reasonable way to make it.
There is no Filly the Filamental Agent, because it would never be as good as the AI you already pay for. Bring that one instead.
MCP
If you work in Claude Desktop, Claude Code or Cursor, it is there the moment you open them.
Your own API key. Any model.
Cloud or local, whichever you already trust. We supply the connector, not the opinion.
Every other product in this category bills your AI use by the tier. We bill once a year and then stop counting.
Investigators, academics, agronomists, AI teams. Each page names the tools you already have open and the problems you already have — Zotero, NVivo, SOYL, Section 106, n8n — because a general description of a knowledge graph has never once helped anybody decide anything.
$120
No seats, no tiers to compare, no monthly toggle to work out.
Free forever on the Personal plan. $120 a year for Professional. Windows, macOS and Linux.