The 27 Best Diagramming & Whiteboards in 2026

Diagramming and floor-planning software with 4,500+ templates across 70+ diagram types.

All-in-one open-source whiteboard tool

Visual collaboration on a digital whiteboard for distributed teams.

Summarize YouTube, PDFs/Docs, URLs, Podcast and Meeting Recordings into Mind Maps in seconds.

Generate diagrams from textual description

Online whiteboard combining visual collaboration with built-in task management.

Real-time collaborative diagramming for flowcharts, wireframes, and org charts by the makers of Backlog.

Free, security-first diagramming tool for flowcharts, wireframes, and technical diagrams.

Free desktop diagramming tool that auto-arranges flowcharts, UML, and network diagrams from data.

Web-based diagramming and design platform

Diagramming tool for creating flowcharts and technical diagrams inside Confluence and Jira.

Browser-based tool for wireframes, diagrams, and interactive prototypes.

The Omni Group's Mac and iPad tool for professional diagrams, wireframes, and vector design.

Infinite-canvas whiteboard with a hand‑drawn sketch feel

A virtual collaborative whiteboard for drawing and brainstorming

Generate diagrams and flowcharts from text

Collaborative online whiteboard for brainstorming and diagramming

Visual collaboration platform for flowcharts, org charts, and diagrams on an infinite canvas.

A modern text-to-diagram language for developers and technical writers

Transform Text into Insight

Online collaborative whiteboard for visual teamwork

Data-first digital whiteboard that turns brainstorms into structured, exportable data.

A focused web app for capturing and shaping ideas into actionable plans.

Create visual boards for collaboration, learning, and creativity

From hand-drawn sketch to editable digital diagram in seconds.

From plain English to animated, editable system diagrams — powered by your choice of AI model.

Create professional diagrams and flowcharts quickly and easily