Architect Your Systems.
Let AI Understand Them.
Design system architecture with flowcharts, write docs in markdown, and feed everything to AI through MCP — using any model you want, for free.
Not just another note app.
A system design tool.
Design Systems Visually
Midown's flowchart view lets you architect entire systems as interactive diagrams — and every diagram lives inside a markdown file. Create documentation manually or let AI generate it for you.
- Interactive flowchart editor for system architecture
- AI-assisted or manual documentation generation
- Diagrams stored as markdown — version-controlled and portable
Two Models. Zero Wasted Tokens.
Midown has built-in AI for generating and editing your architecture docs. But when it's time to code, connect your workspace to VS Code or Antigravity IDE through MCP — using a completely separate model. Keep your planning tokens and your coding tokens apart.
- In-app AI for generating markdown and architecture docs
- MCP connects a separate model in VS Code or Antigravity IDE
- Use free or open-source models for coding — no extra cost
architecture, flowcharts
using a separate model
Never Lose Your Way
Complex architectures get messy fast. Midown's knowledge graph shows how every doc connects — so you always know where you are and what's related. Navigate your entire system at a glance.
- Knowledge graph maps all your architecture docs
- See related files and connections instantly
- Click any node to jump to the doc — no more searching
Choose your plan
Start with a free trial. Upgrade when you're ready.
Monthly
Perfect for trying things out
- Unlimited markdown files
- Flowchart architecture editor
- Workspace management
- MCP integration (all editors)
- Use any AI model
- Priority support
- Early access to new features
Yearly
Best value for committed developers
- Unlimited markdown files
- Flowchart architecture editor
- Workspace management
- MCP integration (all editors)
- Use any AI model
- Priority support
- Early access to new features
Lifetime
One payment, yours forever
- Unlimited markdown files
- Flowchart architecture editor
- Workspace management
- MCP integration (all editors)
- Use any AI model
- Priority support
- Early access to new features
Limited-time early adopter pricing
Your systems deserve
better documentation.
Join developers who use Midown to design, document, and build systems with AI that actually understands the architecture.
Free to try · No account required · Your files stay local