Excephalon is a universal organizer for everything you think with. Notes, files, whole folders, and zoomable, drawable canvases are all the same kind of thing — a memory that can sit in many places in your tag tree at once. Connections between ideas emerge from the tags they share, and the whole brain is saved in an open, human-readable format you own.
What it’s aiming for
One model for everything. Most tools specialize — notes here, files there, a canvas somewhere else. Excephalon’s edge is a single, uniform “tag anything, many ways” model, so a quote, a PDF, a folder of sources, and a hand-drawn diagram can all live side by side and cross-reference through the same tags.
An open format that outlives the app. A brain is just plain-text files and folders — readable in any editor, parseable by any tool, and documented as a published specification. No proprietary database, no lock-in. Your knowledge stays yours and stays usable long after any single program.
A brain an AI can edit from the outside. Because the format is open and granular, an AI agent can read and improve your brain directly — drafting memories, suggesting tags, finding connections. You stay in control: the AI proposes, you approve, and every change is visible and reversible. The app is a trusted store and viewer; intelligence works alongside it, not locked inside it.
Local-first and private. Your brain lives on your machine, in files you control. Privacy and longevity come first; cloud and AI are options you opt into, not dependencies.
Built to last and to travel. A simple, documented, portable format — designed to grow with you and to move with you across tools and platforms.
Status
Excephalon grows out of a long-running personal tool (xmlBrain) now being rebuilt around this open, per-file format. It is in active development.
Curious or want to follow along? Get in touch at contact@excephalon.com.