Beautifully simpleproject management fordevelopers
A local-first workspace for notes, docs, and tasks. Edits land instantly and work offline — the network is a convenience, never a dependency — and everyone in a workspace stays in sync the moment they reconnect.
Local-first
Your work lives in your browser first. Instant to edit, fully usable offline, never waiting on a server.
Real-time
Share a workspace and edit together live. Conflict-free by design — no lost changes, no merge copies.
Markup-native
Plain markdown is the source of truth. Every feature is just a convention in your own text.
Yours
Sign in, invite a collaborator, keep your data. Built on open pieces you could run yourself.
One surface, six views
One document, six ways to see it.
Everything in Perigee is the same primitive — a markdown document with a little metadata. The products are just different lenses on that shared, synced substrate.
Notes
Collaborative markdown notes with a calendar, instant search, todos, callouts, and tables — written and read side by side, synced as you type.
Wiki
Link documents into a living knowledge base. Backlinks, a navigable map of your project, and the same real-time editing underneath.
Swim lanes
Track work on a board that's just your notes grouped by status. Drag a card, move a task — it's the same document, seen as a lane.
Spreadsheets
The same document seen as a grid — cells, formulas, and sorting over your data, kept as plain text underneath and synced like everything else.
Flowcharts
Diagram a system on an editable canvas — drag nodes, draw connections, group regions. It's a deterministic text file underneath, so it merges and syncs like a note.
Mental Model cards
Your documents as a semantic graph. Each note distills to a one-line mental model, and AI links the related ones into a navigable web of relevance.
Mental Model
Your workspace becomes a graph.
Perigee's AI is optional and runs on your own free Google Gemini key — bring your own key, and your notes and key go straight from your browser to your account. Perigee's servers never see either.
Ask any document for its mental model and Gemini distils it to a single sentence and a few tags. Ask for its connections, and Perigee compares that summary against your recent documents, linking the genuinely related ones.
Each note becomes a node; each link, an edge. Your workspace quietly assembles itself into a navigable graph of relevance — semantic structure you'd never tease out of the raw text by hand.
Coming soon
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Local-first · real-time · yours.