PACASYS
中文
AI · Notes · Open Source & Self-Hostable

Redefine Note-Taking with AI

PACASYS is a cloud-native smart note system with built-in AI Agent and multi-workspace collaboration. Free to use and self-hostable — powerful knowledge management for individuals and teams alike.

How It Works

1

Sign Up

Create a free account and start your knowledge journey instantly.

2

Create Workspace

Set up personal or team workspaces to organize your notes your way.

3

AI-Powered Writing

AI Agent assists with writing, summarization, and semantic search — double your productivity.

4

Collaborate & Share

Invite teammates, edit together in real time, and keep knowledge flowing.

Core Features

AI-Powered Assistant

Built-in AI Agent for intelligent writing, auto-summarization, semantic search, and contextual chat.

Workspace & Team

Multi-workspace support seamlessly connects personal notes with team knowledge bases.

Free & Self-Hostable

Core features are free forever. One-click self-hosting gives you full data ownership.

Markdown Editor

Immersive Markdown editing with live preview, syntax highlighting, and code blocks.

Cross-Platform Sync

Available on Web, desktop, and mobile. Real-time cloud sync anywhere.

Version History

Auto-saved edit history lets you revisit any version anytime.

Use Cases

Personal Knowledge

Reading notes, journaling, goal tracking — build your personal knowledge system.

Team Docs

Product specs, meeting notes, technical docs — shared editing keeps info centralized.

Tech Notes

Markdown plus code highlighting — the go-to tool for developer note-taking.

Research

AI-assisted literature review and information extraction for research.

Plans

Free
$0
Forever Free
  • AI Agent core features
  • Multi-workspace support
  • Markdown editor
  • Cross-platform sync
  • Community support
Start Free
Free Core Features
Workspaces Personal · Team
Open Source Self-Hostable

FAQ

Is my data secure? How is privacy protected?

PACASYS uses end-to-end encryption in transit. Self-hosted instances store data entirely on your own server — no third-party access.

How do I self-host? What are the requirements?

Just a Linux server with Docker. One-command deployment. Supports both x86 and ARM architectures.

Does AI run locally or in the cloud?

Self-hosted editions support your own LLM API key or local model deployment. Your data never leaves your server.

What limitations does the free version have?

Core features are completely free: AI assistant, workspaces, Markdown editor, and sync. Advanced features available via self-hosted edition.

Which platforms are supported?

Web version is available now. Desktop (Windows/macOS/Linux) coming soon. Mobile is on the roadmap.

Ready to Get Started?

Sign up free and experience AI-powered note-taking today.

Get Started