Mermaid Reviews 

Written by the company

Mermaid is a diagramming tool built on Mermaid.js, the open-source diagramming library. Diagrams are defined as text in Mermaid syntax, and the rendering engine determines the layout. When a process changes, updating the diagram is a text edit rather than a rebuild — the practical difference from drag-and-drop editors, where repositioning nodes is part of every revision. There are several ways to create a diagram: users can write Mermaid syntax directly, begin from a template, or describe a process in plain language and let Mermaid AI generate the diagram along with its supporting documentation. Every route produces the same text-based diagram, so one that began as an AI generation or a template is edited, versioned, and updated exactly like one written by hand. The editor supports the full range of Mermaid diagram types, including flowcharts, sequence diagrams, class diagrams, entity relationship diagrams, state diagrams, Gantt charts, user journey maps, mindmaps, and timelines. Teams use it for software architecture diagrams, database schemas, API request flows, onboarding and process documentation, and project timelines, where the same syntax covers both quick sketches and diagrams that need to stay accurate over time. Comments, notifications, and real-time collaborative editing keep a team working in a single source file rather than exchanging screenshots. Because diagrams are stored as text, they can be version-controlled alongside code, reviewed in the same workflow as any other file, and kept in sync as the systems they document evolve. Finished diagrams export to standard formats such as PNG and SVG for use elsewhere. Integrations with PowerPoint, Word, Confluence, VS Code, JetBrains IDEs, ChatGPT, and Claude place diagrams in the tools where the work already happens.See more