The best tools for Diagramming

For diagramming, Excalidraw is your best pick. Its charming hand-drawn aesthetic lends itself well to informal sketches and quick brainstorming sessions. Being free, open-source, and capable of running offline means you can retain full control over your data and work without internet dependency, which is an essential advantage for many users.

While tldraw offers a polished infinite canvas and robust real-time collaboration features, its focus on building custom canvas apps might not align as well with traditional diagramming needs. If you require extensive collaborative features and are building interactive prototypes, tldraw is a solid alternative, but for straightforward diagramming, Excalidraw remains the top choice.