Socratus

Ask your notes anything. Socratus answers from your own files, searches by meaning, and maps how your ideas connect. Private AI that runs on your device.

Socratus is a Personal knowledge management system that understands your notes, not just stores them. Ask questions, search by meaning, and see how your ideas connect, with AI that runs privately on your device. Think of it as your second brain, local-first and always under your control.

FEATURES

AI chat that answers from your own notes, with sources shown

Private on-device AI that works offline

Semantic and exact-word search with match scoring

Interactive knowledge graph of related notes, exportable as an image

Related notes ranked by similarity, with related-word tracing

Distraction-free editor built for long-form thinking

Markdown support and syntax highlighting

Dictation, find and replace, adjustable font size, and one-tap save

Structured tables with calculations and charts

Daily scratchpad with Today's Notes

Folders, a clear file tree, and recent files

Import and read documents

File-level encryption with QEncrypt

Portable plain-text files with no lock-in

Passwordless sign-in with a secure link

WHO IT'S FOR Researchers, writers, students, developers, privacy-minded professionals, and anyone building a personal knowledge management system.

PRICING Free for personal use. Professional and Enterprise licenses for commercial work.

Turn your knowledge into a living system that grows with you.

Socratus is a product of FiveRivers Technologies.

Terms of Use (EULA): https://socratus.app/terms-of-service/

Privacy Policy: https://socratus.app/privacy-statement/