Excalidraw
Every Excalidraw app puts a hand-drawn whiteboard on Jira issues or Confluence pages and includes all diagram languages; each one starts from a different kind of diagram. Pick the one that matches what your team draws most, for Jira or for Confluence.

Excalidraw Whiteboard & Mermaid Diagrams for Confluence
Sketch hand-drawn whiteboards and turn Mermaid text into editable diagrams on Confluence pages, saved safely with version history

Excalidraw Whiteboard & Mermaid Diagrams for Jira
Sketch hand-drawn whiteboards and turn Mermaid text into editable diagrams on Jira issues and project pages

Excalidraw Math Equations & LaTeX Whiteboard for Confluence
Write LaTeX equations and draw around them: math, diagrams and charts together on a Confluence whiteboard

Excalidraw Math Equations & LaTeX Whiteboard for Jira
Write LaTeX equations on Jira issues and draw around them: formulas, sketches and charts on one whiteboard

Excalidraw Architecture & Sequence Diagrams for Confluence
Write sequence diagrams and architecture graphs as text, then sketch around them on an Excalidraw whiteboard in Confluence

Excalidraw Architecture & Dependency Diagrams for Jira
Draw architecture and dependency diagrams on Jira issues — sketch by hand or generate the graph from Graphviz DOT text

Excalidraw UML & Class Diagrams for Confluence
Draw UML class, sequence, state and ER diagrams from text on Confluence pages, then sketch around them in Excalidraw

Excalidraw UML & Class Diagrams for Jira
Draw UML class, sequence, state and ER diagrams from text on Jira issues, inside a hand-drawn Excalidraw whiteboard