Learn Low Level Design (LLD) and prepare for interviews using free resources.

🍞📝 Markdown WYSIWYG Editor. GFM Standard + Chart & UML Extensible.

Generate diagrams from textual description

A pleasant note-taking platform in native C++.

From text & real sources to maintainable .drawio architecture models: Diagram IR with source-kind profiles, incremental sync preserving manual layout, multi-view projection, architecture-as-test with a CI action, query/review, what-if, accessible Story Mode, and a built-in MCP server

C4-PlantUML combines the benefits of PlantUML and the C4 model for providing a simple way of describing and communicate software architectures

Creates diagrams from textual descriptions!

A curated collection of diagramming tools used by leading software engineering teams

The sassy UML diagram renderer

Gaphor is the simple modeling tool

Interactive ASCII art diagram generators. 🌟

A low-code development platform for creating systems 🇺🇦#standwithUkraine

KSHObjcUML can show oriented graph of dependencies between Objective-C and Swift classes in your project

Modelio is a modeling solution offering a wide range of functionalities based on the main standards of enterprise architecture, software development and systems engineering.

JavaScript architecture diagrams and dependency graphs

Situational Awareness Server compatible with TAK clients

Customizable automatic UML diagram generator for C++ based on Clang.

write beautiful state charts 🙀

plantuml-font-icon-sprites

A desktop application for fast UML diagramming.