Perennius
Write, analyse, review and manage all your academic work in one desktop app, from the first sign of an opportunity to the published paper.
Exegi monumentum aere perennius.
Editor, preview, notebook, diff viewer, git and your coding agent stop living in separate tabs. Each project gets a workspace; the agent docks on the right everywhere.
Leaders who rely on generative AI report higher confidence without matching gains in accuracy @lee2025. Participants were recruited through a professional network. Each completed a judgement task under one of three conditions.
Accuracy was scored against an expert panel blind to condition, and confidence was recorded before feedback.
Live preview beside a distraction-free editor. Plain source underneath; Word export for co-authors.
Re-run the analysis and every labelled figure and table in the manuscript updates. Qualitative coding on the same data.
Agent replies arrive in the margin; its edits arrive as tracked changes you accept or reject one by one.
Boards, deadlines, budgets and receipts, linked to the studies and outputs they belong to.
Saved searches, blind dual screening, extraction and PRISMA diagrams generated from the records.
Finished work flows into a private career record, ready for promotion cases, CVs and track records.
AI never writes reference details. Every reference must resolve in a scholarly database, is cross-checked across independent sources and checked for retractions, and export stays blocked until the bibliography passes.
Perennius works with the agent you already use, signed in with your own account. It never handles your login and never resells usage. Anything an agent writes is marked until a person accepts it.
Plain text you own, versioned in git. No lock-in.
Nothing leaves your machine unless you turn on sync. Sync is end-to-end encrypted.
Standard shortcuts and plain language. Vim and terminals when you want them.
Built to pass university security review, from the first commit.
On Linux, Perennius takes its colours from your Omarchy theme and restyles the moment you switch. Every colour is computed from the theme's own palette. Try it on this page.