Top 8 uml-diagram Open-Source Projects

X6

14 5,353 9.2 TypeScript

🚀 JavaScript diagramming library that uses SVG and HTML for rendering.
GoPlantUML

0 1,676 3.9 Go

PlantUML Class Diagram Generator for golang projects
SurveyJS

surveyjs.io sponsored

Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.
Diagon

7 1,428 5.1 C++

Interactive ASCII art diagram generators. :star2:

Project mention: Architecture diagrams enable better conversations | news.ycombinator.com | 2023-08-22

A few more ASCII-based tool that you could add into your workflow are https://arthursonzogni.com/Diagon/#Sequence which can be used to generate the ASCII that you input into something like Typogram (https://google.github.io/typograms/).
For example, input:
  Renderer -> Browser: BeginNavigation()

puml-for-markdown

11 276 0.0 JavaScript

A CLI tool to embed interactive PUML diagrams to your github markdown files.
uml-reverse-mapper

3 218 7.9 Java

Automatically generate class diagram from code. Supports Graphviz, PlantUML and Mermaid output formats.
dcdg.dart

1 146 0.0 Dart

Dart Class Diagram Generator
FlowRun

10 39 7.7 Scala

Executable flow diagrams
InfluxDB

www.influxdata.com sponsored

Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
ClassExplorer

1 27 10.0 JavaScript

UML Class Diagram Builder for InterSystems Data Platforms (2014.1+) (by intersystems-community)

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).