Alternatives
Open Source Alternatives to Microsoft Visio
Create professional diagrams, flowcharts, and organizational charts with drag-and-drop simplicity and extensive template library for business visualization needs.
Open Source Alternatives to Microsoft Visio
Use the same directory search, ordering, and pagination controls inside this collection.
5 of 5 tools
Excalidraw
MIT
Virtual whiteboard for sketching diagrams, flowcharts, and wireframes with a distinctive hand-drawn look. Real-time collaboration built in.
Tldraw
Unknown
Virtual whiteboard that works instantly on any device, no signup required, with real-time multiplayer collaboration built in.
draw.io
Apache-2.0
Create professional diagrams online or offline with security-first approach. No registration needed. Works with Google Drive, SharePoint, Atlassian, and more.
drawDB
AGPL-3.0
Free online database diagram editor with SQL generation. Create ER diagrams, visualize relationships, export scripts, and reverse engineer schemas - no signup required.
Mermaid
MIT
Generate flowcharts, sequence diagrams, and visualizations using intuitive markdown-like syntax without design skills.