System design, made simple
◆ SchemaFlow

Diagrams that explain themselves.

An infinite canvas for system design. Drop in components, connect them, and hover any piece to see exactly what it does.

Start drawing — it's free End-to-end encrypted
Interaction
Hover to explain
↓ hover me
Give every box a description, then hover to read it. Anyone can understand the system at a glance — no tribal knowledge required.
Security
End-to-end encrypted
↓ hover me
Your diagrams are encrypted in your browser before they're saved, with a passphrase only you know. SchemaFlow can't read them — ever.
Canvas
Infinite canvas
↑ hover me
Pan and zoom forever. Sketch a single service or map an entire platform — the canvas never runs out of room.
Connections
Self-routing arrows
↑ hover me
Drag from one component to another and the arrow finds its own path, curving around everything in between.
Components
Drag & drop parts
↑ hover me
Services, databases, queues, clients — pull them off the rail and drop them in where you need them.
🔒 Zero-knowledge by design

Your architecture is nobody's business but yours.

System diagrams are a map of how your product works — sometimes its weak points too. So SchemaFlow encrypts them on your device before they ever reach our servers. We store scrambled ciphertext and nothing else.

01

Encrypted on your device

Names and contents are encrypted in your browser with a key derived from your passphrase.

02

The key never leaves you

Your passphrase and key stay on your device. They're never sent to us, so we can't decrypt your work.

03

We see only ciphertext

Open the database and all you'd find is scrambled text — not a single component or connection.

Map your system in minutes.

Start drawing — it's free