Research. Literature. Writing.
Kortexia is the local-first suite for academic work — no cloud, no subscription. Your data stays yours.
Three products. One workflow.
Find sources in the browser, manage your knowledge locally, write your work — seamlessly connected.
Synapse
CONNECT
Browser extension for Chromium and Firefox. Save sources from the web into Gnosis — with DOI detection and metadata.
- One-click import from browser
- Automatic DOI detection
- In-page icons next to DOI links
- Automatic metadata enrichment
- Chromium + Firefox support
- Free with Gnosis
Gnosis
KNOW
Reference management, knowledge management, PDF reader and Zettelkasten in one desktop app. The hub of the suite.
- Library with DOI/ISBN fetch
- PDF reader with highlighting
- Zettelkasten with wikilinks
- Interactive knowledge graph
- Semantic argument mapping
- Local AI via Ollama
Scribo
WRITE
Modern LaTeX editor with seamless Gnosis integration. Bibliography from your library, automatic references.bib.
- Modern LaTeX editor
- No TeX Live required
- PDF preview in split view
- Zen mode for focused writing
- Auto-bibliography from Gnosis
- Also usable standalone
Software you actually own.
100% local
All apps run on your machine. No cloud, no tracking, no dependency.
No subscription
Buy once, use forever. No monthly fees, no surprises.
Privacy
Your research data belongs to you. No analytics, no resale, no cloud lock-in.
Local AI
AI features run via Ollama — fully local, no data sent to external services.
Latest updates and insights from development.
Willkommen bei Kortexia
Kortexia ist die Local-first Suite für wissenschaftliches Arbeiten — ohne Cloud, ohne Abo. Erfahre, was uns antreibt und was dich erwartet.
Warum Local-first? Unsere Überzeugung
Cloud-Dienste sind bequem — aber zu welchem Preis? Warum wir bei Kortexia konsequent auf Local-first setzen und was das für dich bedeutet.
Suggest features, report bugs, or vote on others' ideas. Your feedback goes straight into development.
Buy once. Use forever.
No subscription, no hidden costs. One-time purchase with 1 year of updates included. After that you can relicense at a low cost for another year of updates.
Synapse
CONNECTBrowser Extension
Inklusive in jeder Gnosis-Lizenz.
- Ein-Klick-Import vom Browser
- Automatische DOI-Erkennung
- In-Page-Icons neben DOI-Links
- Metadaten-Anreicherung
- Chromium + Firefox Support
Gnosis
KNOWLiterature & knowledge
1 year of updates included. Relicense for owners available at low cost afterwards.
- Reference management & PDF reader
- Zettelkasten with knowledge graph
- Semantic argument mapping
- Local AI via Ollama
- 4 reference databases integrated
- 9 themes, bilingual (DE/EN)
- Synapse extension included
- 1 year of updates included (low-cost relicense after)
Scribo
WRITELaTeX editor
1 year of updates included. Relicense for owners available at low cost afterwards.
- Modern LaTeX editor
- No TeX Live required
- PDF preview in split view
- Zen mode
- Usable standalone
- Gnosis integration optional
- 1 year of updates included (low-cost relicense after)
Suite Bundle
COMPLETEGnosis + Scribo + Synapse
1 year of updates included. Relicense for owners available at low cost afterwards.
- Everything in Gnosis
- Scribo LaTeX editor
- Auto-bibliography from Gnosis
- PDF preview in split view
- Zen mode
- Synapse browser extension
- 1 year of updates included (low-cost relicense after)
- Save €19 vs. buying separately
License: Purchase entitles you to permanent use. Updates are included for the first year. After that you can relicense at a lower cost for owners to get another year of updates — optional, no subscription.