Showing 706 open source projects for "diagrams"

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  • 1
    Diagrams

    Diagrams

    Diagram as Code for prototyping cloud system architectures

    Diagrams lets you draw the cloud system architecture in Python code. It was born for prototyping a new system architecture without any design tools. You can also describe or visualize the existing system architecture as well. Diagram as Code allows you to track the architecture diagram changes in any version control system. Diagrams currently support main major providers including AWS, Azure, GCP, Kubernetes, Alibaba Cloud, Oracle Cloud, etc.
    Downloads: 0 This Week
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  • 2
    diagrams.net

    diagrams.net

    Security-first diagramming for teams

    Bring your storage to our online tool, or go max privacy with the desktop app. Diagram files created in 2005 will load in the app today. Works with Google Drive and Google Workplace (G Suite). Use add-ons for Docs, Sheets and Slides. It works with OneDrive and Sharepoint. Office 365 app for Word, Powerpoint and Excel. Highest-rated Confluence app in the Atlassian Marketplace. Works in Jira too. Works with GitHub, GitLab and Dropbox for visual documentation in distributed teams. You can...
    Downloads: 106 This Week
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  • 3
    Entity relation diagrams generator

    Entity relation diagrams generator

    Entity Relation Diagrams generation tool

    ERAlchemy generates Entity Relation (ER) diagram from databases or from SQLAlchemy models. The simplest way to install eralchemy on OSX is by using Homebrew. ERAlchemy requires GraphViz to generate the graphs and Python. Both are available for Windows, Mac and Linux. Thanks to it's modular architecture, it can be connected to other ORMs/ODMs/OGMs/O*Ms. Some tests require a local postgres database with a schema named test in a database named test all owned by a user named postgres with a...
    Downloads: 1 This Week
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  • 4
    PlantUML

    PlantUML

    Generate diagrams from textual description

    ...Run (or have your software call) PlantUML, using sequenceDiagram.txt as input. The output is an image, which either appears in the other software, or is written to an image file on disk. Diagrams are defined using a simple and intuitive language. (see PlantUML Language Reference Guide). Images can be generated in PNG, in SVG or in LaTeX format. It is also possible to generate ASCII art diagrams (only for sequence diagrams).
    Downloads: 49 This Week
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  • 5
    Mermaid

    Mermaid

    Diagram and flowchart generation from text similar to markdown

    ...Its range of available diagrams include flowcharts, sequence diagrams, gantt diagrams and more, with new ones continuously being developed.
    Downloads: 107 This Week
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  • 6
    React Diagrams

    React Diagrams

    Super simple, no-nonsense diagramming library written in react

    ...Designed for process the library is aimed for software engineers that want to rewire their programs at runtime, and that want to make their software more dynamic. Fast diagram editing the defaults provided give the highest priority to editing diagrams as fast as possible.
    Downloads: 0 This Week
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  • 7
    GitDiagram

    GitDiagram

    AI tool that converts GitHub repositories into interactive diagrams

    ...These diagrams provide a high-level overview of a codebase, making it easier for developers to explore unfamiliar projects or understand large and complex repositories. Users can interact with the generated diagrams by clicking components to navigate directly to related files or directories within the repository. GitDiagram combines a modern web frontend with a backend service that processes repository data and generates diagrams dynamically.
    Downloads: 3 This Week
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  • 8
    D2

    D2

    D2 is a modern diagram scripting language that turns text to diagrams

    ...D2 includes a variety of official themes to style your diagrams beautifully right out of the box. See ./d2themes to browse the available themes and make or contribute your own creation. D2 is designed with language tooling in mind. D2's parser can parse multiple errors from a broken program, has an autoformatter, syntax highlighting, and we have plans for LSP's and more. Good language tooling is necessary for creating and maintaining large diagrams.
    Downloads: 9 This Week
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  • 9
    Smart Excalidraw

    Smart Excalidraw

    A smart, powerful, and beautiful excalidraw drawing tool

    Smart Excalidraw Next is an AI-powered diagramming tool that allows users to generate professional-quality visual diagrams directly from natural language descriptions, combining generative AI with the flexibility of the Excalidraw canvas. It leverages large language models to interpret user input and automatically produce structured diagrams such as flowcharts, architecture diagrams, ER diagrams, and mind maps with logical layouts and clean visual organization. ...
    Downloads: 1 This Week
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  • 10
    ERAlchemy

    ERAlchemy

    Entity Relation Diagrams generation tool

    ERAlchemy is a tool that generates Entity-Relationship (ER) diagrams from databases or SQLAlchemy models and vice versa. It’s useful for database documentation, reverse engineering, and understanding complex schemas. ERAlchemy can export diagrams in formats like Graphviz and Mermaid, making it easy to include in reports or markdown files.
    Downloads: 0 This Week
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  • 11
    FossFLOW

    FossFLOW

    Make beautiful isometric infrastructure diagrams

    FossFLOW is an open-source Progressive Web App for creating visually rich isometric infrastructure and network diagrams directly in the browser. Built with React and the Isoflow library, the application provides a specialized environment for producing 2.5D technical diagrams that are especially useful for DevOps and architecture documentation. The project is structured as a monorepo containing both a reusable React component library and the full web application wrapper. ...
    Downloads: 10 This Week
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  • 12
    GoJS

    GoJS

    JavaScript diagramming library for interactive flowcharts & org charts

    Build interactive flowcharts or flow diagrams. Let your users build, modify, and save diagrams with JSON model output. Visualize state charts and other behavior diagrams. Create diagrams with live updates to monitor state, or interactive diagrams for planning. GoJS allows considerable customization of links and nodes to build all kinds of diagrams. Visualize flow, or connect pipes.
    Downloads: 0 This Week
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  • 13
    Excalidraw

    Excalidraw

    Virtual whiteboard for sketching hand-drawn like diagrams

    Excalidraw, the virtual whiteboard app for sketching hand-drawn like diagrams, has come a long way. With the remote work becoming the status quo, Excalidraw was able to show its true potential and we’ve come to a point where over 100K people have used it just the last month! While it has been extremely successful as a free open source project, the biggest source of complaints nowadays is around adoption within companies: How do you share diagrams with your co-workers easily? ...
    Downloads: 164 This Week
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  • 14
    beautiful-mermaid

    beautiful-mermaid

    Render Mermaid diagrams as beautiful SVGs or ASCII art

    beautiful-mermaid is a styling and rendering toolkit built to produce visually enhanced diagrams from Mermaid syntax, aiming to bridge the gap between simple technical diagrams and rich, presentation-ready visualizations, all while preserving the lightweight text-to-diagram workflow that Mermaid offers. Instead of plain, utilitarian shapes and lines, Beautiful Mermaid applies themes, typography enhancements, color palettes, and layout optimizations so diagrams look polished and professional without requiring manual graphic design. ...
    Downloads: 1 This Week
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  • 15
    Architecture as a code

    Architecture as a code

    Visualize, collaborate, and evolve the software architecture

    ...Inspired by the C4 Model and other architectural DSLs, LikeC4 lets you define your system’s structure in a textual DSL and then automatically generate consistent diagrams that reflect that design, ensuring that architecture documentation stays in sync with source code changes. The project includes command-line tooling, IDE integrations, live preview servers, and diagram exporters, letting developers instantly see architectural diagrams update as the model evolves. By treating architecture as code, teams benefit from version control, live collaboration, consistency across diagrams, and the ability to treat architectural change with the same tooling and workflows used for code.
    Downloads: 4 This Week
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  • 16
    nomnoml

    nomnoml

    The sassy UML diagram renderer

    ...You can use this to implement interactive diagrams.
    Downloads: 0 This Week
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  • 17
    plantuml.jar

    plantuml.jar

    PlantUML plugin for Jekyll: helps you embed UML diagrams

    PlantUML plugin for Jekyll: helps you embed UML diagrams into static pages.
    Downloads: 0 This Week
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  • 18
    drawio-desktop

    drawio-desktop

    Security-first diagramming for teams

    ...Download diagrams.net Desktop for offline use on Windows, macOS, Linux and ChromeOS. Nextcloud is an ideal on-premise file hosting system for diagrams.net. Entity relationship diagrams or ER models in software engineering show the structure of and relationships between database objects. They are used extensively in database modelling to plan new systems, and document existing systems for maintenance and updates.
    Downloads: 144 This Week
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  • 19
    System Design Visualizer

    System Design Visualizer

    An interactive tool that transforms static system design diagrams

    ...It provides a drag-and-drop canvas with reusable components representing servers, databases, APIs, message queues, and user clients, enabling stakeholders to create diagrams that describe data flows, dependencies, and interactions clearly and intuitively. Beyond drawing diagrams, the tool supports semantic relationships — meaning elements can have structured metadata, links, and annotations that explain behavior, constraints, and performance assumptions directly within the design. It’s particularly useful for collaborative design sessions, documentation, and architecture reviews, bringing visual clarity to topics that are often buried in text or code comments.
    Downloads: 0 This Week
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  • 20
    swark.io

    swark.io

    Create architecture diagrams from code automatically using LLMs

    Swark is an open-source developer tool and Visual Studio Code extension that automatically generates software architecture diagrams directly from source code using large language models. The project aims to help developers quickly understand complex codebases by analyzing repositories and producing visual diagrams that represent system architecture, dependencies, and component relationships. Instead of relying on manually maintained diagrams that often become outdated, Swark uses AI to infer architecture patterns dynamically from the code itself. ...
    Downloads: 0 This Week
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  • 21
    Excalidraw MCP

    Excalidraw MCP

    Fast and streamable Excalidraw MCP App

    Excalidraw-MCP is an open-source Model Context Protocol (MCP) application and server that connects the visual power of Excalidraw’s hand-drawn diagram editor with AI-driven workflows, enabling agents like Claude, ChatGPT, VS Code, and other MCP-compatible hosts to generate and manipulate diagrams programmatically. Rather than being just a static whiteboard, Excalidraw-MCP serves diagrams in real time using an MCP backend and streams interactive visual output back to the client, letting AI tools create shapes, connectors, text, and entire diagrams as part of conversational or task-based sessions. Its design supports fast, streamable rendering with smooth viewport control and optional fullscreen editing so that diagrams feel live and fluid as they evolve. ...
    Downloads: 3 This Week
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  • 22
    Dgrm.net

    Dgrm.net

    Flowchart editor

    ...It supports dynamic updates, enabling diagrams to respond to user interactions or data changes in real time. The system is particularly useful for applications that require visual modeling, such as workflow editors, architecture diagrams, or educational tools. Its modular design allows customization of rendering and behavior, making it adaptable to various use cases. Overall, DgrmJS offers a practical solution for embedding diagramming capabilities into modern web interfaces.
    Downloads: 0 This Week
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  • 23
    DeepWiki Open

    DeepWiki Open

    AI-Powered Wiki Generator for GitHub/Gitlab/Bitbucket Repositories

    ...Users can enter a repository URL and the system will clone the project, build semantic embeddings of its codebase, extract architecture and relationships, generate human-readable documentation, and produce visual diagrams to help explain complex code structure. DeepWiki’s output turns raw repositories into interactive, web-style wikis complete with navigable sections, diagrams, and contextual explanations, making it easier for developers and collaborators to understand unfamiliar code. It includes an “Ask” feature that lets users query the generated wiki using RAG-style retrieval, enabling interactive question-answering and exploration.
    Downloads: 5 This Week
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  • 24
    Obsidian TikZJax

    Obsidian TikZJax

    Render LaTeX and TikZ diagrams in your notes

    A plugin for Obsidian that lets you render LaTeX and TikZ diagrams in your notes. You can render graphs, figures, circuits, chemical diagrams, commutative diagrams, and more.
    Downloads: 0 This Week
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  • 25
    DrawDB

    DrawDB

    Free, simple, and intuitive online database diagram editor

    DrawDB is an open source database diagramming tool for designing schemas visually and generating SQL from them. You create tables, columns, indexes, and foreign keys via drag-and-drop, and the app keeps relationships clear with clean, orthogonal connectors. It exports DDL for popular SQL dialects so you can move quickly from design to migration scripts. Projects can be saved, shared, and exported as images for documentation, making it useful for handoffs and reviews. The editor supports...
    Downloads: 24 This Week
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