Diagram.codes

Diagram.codes

Diagram.codes is a free online diagramming tool that allows users to easily create flowcharts, UML diagrams, UI mockups, network diagrams, and more. It has an intuitive drag-and-drop interface with various shapes and connectors.
Diagram.codes image
flowchart uml mockup diagram free

Diagram: Free Online Diagramming Tool

A free online diagramming tool for creating flowcharts, UML diagrams, UI mockups, network diagrams, and more with an intuitive drag-and-drop interface.

What is Diagram.codes?

Diagram.codes is a free online diagramming and prototyping tool used by over 4 million people globally. It allows users to easily create a variety of diagrams including flowcharts, wireframes, UML diagrams, network diagrams, mind maps, and more. The intuitive drag-and-drop interface provides various shapes, connectors, and diagram templates to get started quickly.

Some key features of Diagram.codes include:

  • Drag-and-drop diagram editor with an unlimited canvas
  • Hundreds of professionally designed diagram shapes and icons
  • Smart alignment guides, auto layout, grouping, and arranging
  • Real-time collaboration allowing multiple people to edit diagrams together
  • Export diagrams as images (PNG, JPG, SVG), PDF files, or share links
  • Cross-platform web app that works on any device with a browser
  • Secure cloud hosting and version control for diagrams with online accounts
  • Third party integrations with tools like Google Drive, Trello, Confluence, and more

With an easy learning curve and completely free tier, Diagram.codes is designed to help teams and individuals visualize ideas and processes more efficiently. Its SVG-based editor provides a scalable vector format for creating high-quality diagrams that can be used across platforms and devices.

Diagram.codes Features

Features

  1. Drag-and-drop interface for easily creating diagrams
  2. Supports flowcharts, UML diagrams, UI mockups, network diagrams, etc
  3. Large library of shapes and connectors
  4. Real-time collaboration for working together on diagrams
  5. Import/export diagrams as images or PDF files
  6. Intuitive editing tools for styling and arranging diagram elements
  7. Share and embed diagrams through links
  8. Dark mode support
  9. Keyboard shortcuts for efficient diagramming
  10. Cross-platform - works on desktop and mobile browsers

Pricing

  • Freemium

Pros

Free to use with no limits

Very easy to learn and use

Good for both simple and complex diagrams

Collaboration feature is handy for teams

Export options allow saving diagrams in different formats

Many diagram types to choose from

Dark mode looks great

Works on any device with a browser

Cons

Lacks some advanced features of paid alternatives

Collaboration could be better integrated

No offline access or desktop/mobile apps

Limited styling options compared to some competitors

No built-in image library

Can be slow with very large diagrams


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