Lucidchart
Diagramming · Free · since 2010
Visit Lucidchart ↗ See alternatives Pricing
Lucidchart is a intelligent diagramming platform for flowcharts, wireframes, and technical diagrams. It handles flowcharts, real-time collab, templates, and integrations, and it's best suited for teams wanting professional diagramming and flowcharts. It has been around since 2010, giving it a 16-year head start in building out integrations and refining the product.
The free plan is free for 3 documents — enough for most people to evaluate whether it fits.
pros
- Includes Flowcharts as a core feature, purpose-built for diagramming workflows
- Real-time collaboration so multiple designers can work on the same scene together
- Free for 3 documents — generous enough for most small teams to get real work done
- Established product with 16+ years on the market and a mature ecosystem
cons
- Free plan exists but key features are locked behind the paid upgrade
- Fewer built-in features means you may need additional tools to cover gaps
- Ecosystem of third-party integrations is smaller than the market leaders in diagramming
- Mobile experience lags behind the desktop version in features and polish
top Lucidchart alternatives
Mermaid JavaScript-based diagramming tool that renders diagrams from text definitions. Free 
Draw.io (diagrams.net) Free, open-source diagramming tool that works in the browser with no account needed. Free 
tldraw Open-source collaborative whiteboard with a friendly interface and embeddable SDK. Free 
FigJam Collaborative whiteboard from Figma for brainstorming, diagramming, and workshops. Free 
Eraser Technical design tool for architecture diagrams, design docs, and cloud diagrams. Free Lucidchart compared
Mermaid vs Lucidchart · Lucidchart vs Draw.io (diagrams.net) · Lucidchart vs tldraw · Lucidchart vs FigJam · Lucidchart vs Eraser · Lucidchart vs Eraser · Lucidchart vs PlantUML
more diagramming tools
Mermaid JavaScript-based diagramming tool that renders diagrams from text definitions. Free Draw.io (diagrams.net) Free, open-source diagramming tool that works in the browser with no account needed. Free tldraw Open-source collaborative whiteboard with a friendly interface and embeddable SDK. Free FigJam Collaborative whiteboard from Figma for brainstorming, diagramming, and workshops. Free Eraser Technical design tool for architecture diagrams, design docs, and cloud diagrams. Free E Eraser Technical diagramming tool for software architecture, system design, and engineering docs. Free