Tool · Docs

PlantUML

PlantUML · plantuml.com Free Intermediate

The open-source tool that draws UML diagrams (sequence, class, activity and more) from simple text descriptions, standard in many engineering teams.

  • Use it when a course or a client asks for proper UML.
  • Like Mermaid, the text can live in your repository.

The question it answers

  1. Which free tool should I use to draw flowcharts, org charts and diagrams?

Read with it

  1. A free, no signup whiteboard with a deliberately hand drawn look, ideal for sketching screens and flows without falling into... Excalidraw Tool Excalidraw Excalidraw
  2. Whimsical does mind maps, flowcharts, wireframes and docs in one clean tool. Free to evaluate; Pro is $10 an editor a month and... whimsical.com Tool · Pricing page Whimsical pricing Whimsical
  3. The free, open-source diagram editor (also known as diagrams.net): free forever, no sign-up, and your files stay wherever you... drawio.com Tool · Web and desktop app draw.io draw.io
  4. Lucidchart's pricing page. The free plan allows 3 editable documents with up to 75 shapes each; Individual is $9 a month billed... lucidchart.com Tool · Pricing page Lucidchart pricing Lucid
  5. Mermaid turns a few lines of text into flowcharts, sequence diagrams, ER diagrams and more. Because the diagram is text, an AI... mermaid.js.org Tool · Docs and live editor Mermaid Mermaid
  6. GitHub's guide to drawing Mermaid diagrams directly in READMEs, issues and pull requests. docs.github.com Article · 5 min read Creating diagrams on GitHub GitHub
eChai Partner Brands The partnership →