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Alternatives

Products that do what PlantUML examples for UML, wireframes, mind maps, Gantt, C4, and more does

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    GanttTool125

    Online project Gantt charts builder with instant exports

    Dec 2025

  3. 3CU

    Hi, clang-uml is an open-source C++ to UML diagram generator, driven by YAML configuration files. The main idea behind the project is to easily maintain up-to-date diagrams within a code-base or document legacy code. The configuration file for clang-uml defines the types and contents of each generated diagram. The diagrams can be currently generated in PlantUML and JSON formats. Main features: - class, sequence, package and include diagrams - up to C++17 with support for C++20 concepts - visualization of template specialization relationships - declarative diagram content filtering based on…

    2023 · github.com

  4. 4

    Create beautiful user flows prototypes for your next project

    2017

  5. 5

    Turn mind maps into lightweight project plans

    Oct 2025 · xmind.com

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    Blocks948

    Your team’s wireframing tool, right from Figma

    2024 · blocks.pm

  7. 7IV

    GitDiagram is an open-source micro dev-tool that I made this past week Given any public GitHub repository it generates diagrams in Mermaid.js with Claude 3.5 Sonnet I extract information from the file tree and README for details and interactivity (you can click components to be taken to relevant files and directories) Also, you can replace "hub" with "diagram" in any repository URL to access its diagram I created this because I wanted to contribute to open-source projects but quickly realized their codebases are too massive for me to dig through manually, so this helps me get started I do…

    2024 · gitdiagram.com

  8. 8

    Instantly visualize any codebase as an interactive diagram

    2025

  9. 9GD
  10. 10
    Bhava320

    Create and edit diagrams instantly with AI

    2025

  11. 11

    Create beautiful user flow charts, sitemaps and wireframes

    2020

  12. 12DA

    In the past I've used declarative diagram generation tools like Mermaid.js a lot for quickly drawing up things but for presentations or deliverables I find that I have to then move the generated diagrams over to a tool like Lucidchart which allows full control of the organization and customization. Therefore I am now working on this to combine the benefits of both into just one tool which can do both functions. The project is certainly in the early stages but if you find yourself making architecture diagrams I'd love to hear your thoughts on the idea or even a Github issue for a feature…

    Oct 2025 · github.com

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    UXFlow265

    Free customizable flowchart kit for Sketch and Figma

    2017

  14. 14

    A tool for generating diagrams and flowcharts from text.

    2020

  15. 15

    The diagramming tool for developers

    2023

  16. 16

    Free UI component library to create mockups in Figma quickly

    2021

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    UXToolset168

    Components for wireframes, flows, diagrams and documentation

    2020

  18. 18AO
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    Solarch109

    Interactive diagrams with AI, and your code always in sync

    Jun 2026 · solarch.dev

  20. 20
    Hubql CLI119

    Create data schema visualizations from your terminal

    2024

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    200+ elements for mind map and flowchart building

    2021

  22. 22
    ChatUML113

    Your AI assistant for making diagrams

    2023

  23. 23CD

    Hello HN, It has been a while since I contributed to the web, so I decided to get back in shape and publish "something". This app is a POC of "what if diagrams were more dynamic". I'm a software engineer by trade, and with conventional tools, I often times struggle to explain flows of data in complex software systems. I got inspired by video games like The Incredible Machine and Factorio, as in some ways, software systems tend to become Rube Goldberg-esque machines ;) As a side quest, I also wanted to craft diagrams faster than text-based tools (ex: mermaid), as I am always forgetting their…

    2024 · github.com

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    Agantty119

    Free, beautiful and easy to use project management tool

    2018

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