Any folder on your computer can become a Filamental project. Point Filamental at it and every file inside becomes a node you can arrange, connect and write about, while the files themselves stay exactly where they are.
Most of us already have the material: a folder of notes, a research pile, a client's documents, a stack of PDFs. Opening it as a project lets you see it as a structure and start connecting it, without copying anything or deciding up front how it should be organised.
If you'd rather an AI read the documents and build the structure for you, see Explore a Folder or Document with AI.
Every file becomes a node. Notes that link to each other with wikilinks are connected, and PDFs, images and other files arrive as file nodes that open in their usual app when you double-click them.
If the folder has sub-folders, you'll see Use sub-folders as classifications. Switch it on and the files in each top-level sub-folder go into a classification named after it, PDFs and images included. Files sitting in the top folder stay unclassified.
Leave it off and everything arrives unclassified, ready for you to sort in the Left Panel.
Nothing is moved, renamed or deleted. Your notes get Filamental's details added to their front matter, and any fields they already have are kept, so Obsidian and other apps carry on reading them as before. Filamental also adds a hidden .filamental folder inside, which holds the layout and the project's settings (more in Forget, Remove or Delete a Project).
If you opened a folder without the sub-folder switch, or you've added notes since, you can still classify them by folder. Click + in the bottom bar and choose Classify notes by folder.
This one is for notes only, and it isn't a step Ctrl+Z can undo (see Undo and Redo).
If the folder you choose sits inside a project you already have, Filamental says so first. Opening it makes it a separate project, and the outer project then shows it as a single bridge node that takes you into it.
Still stuck? Email [email protected].