Apps similar to Mermaid include yEd Graph Editor, which is free. Other options are PlantUML, quiver diagram editor, Graphviz and Kroki. There's no shortage of Diagram Editors like Mermaid, with more than 25 alternatives for the web, Windows, Linux, Mac and self-hosting.
Open source diagram editor for visualizing full database schemas via a single query in seconds, supporting MySQL, MariaDB, PostgreSQL, SQL Server, and SQLite, with AI-driven DDL export, image download, attractive sharing options, and advanced editing features.
Graphs is a simple, yet powerful tool that allows you to plot and manipulate your data with ease. You can import data from two-column files or generate it via an equation. All data can be manipulated using a variety of operations such as the ability to select, cut, translate...
Simple vector graphics editor for creating flowcharts, UML class diagrams, illustrations and slide shows.
Denmark
EU
Schema Visualizer is a collaboration platform for teams to visualize data schemas in JSON or Prisma and API schemas in Protobuf and GraphQL and generate graphs, ER-diagrams for real-time collaboration internally and externally.
United States
Diagramly is an innovative tool that uses AI to convert text descriptions or images into editable diagram code. It supports popular formats like Mermaid and ZenUML, allowing users to easily create and maintain professional diagrams.
United Kingdom
Cloud-based diagram creation platform hosting draw.io diagrams, featuring real-time collaboration in a shared workspace. Supports flowcharts, cloud architecture (AWS, Azure, GCP), UML, ER, network diagrams, seamless import/export, and modern, intuitive interface.
blockdiag and its family generate diagram images from simply text file.
Features:
Supports many types of diagrams block diagram (w/ blockdiag) sequence diagram (w/ seqdiag) activity diagram (w/ actdiag) logical network diagra.
Japan
Evernox is a browser-based tool for visually designing and managing relational databases with powerful features like real-time collaboration, AI-assisted SQL queries, and code generation in multiple languages and ORMs.
AustriaEU
A tool for drawing flowchart and sequence diagrams with a simple, concise and easy to use syntax, in a similar manner as markdown.
United States
IngaBoard is a minimalist, keyboard-driven application that turns fragments of "Cause and Effect" into structured Directed Acyclic Graphs (DAG) instantly. No manual boxes, no dragging lines. By stripping away superficial decoration, we reveal the inherent beauty of structural truth.
Japan
