Web Sequence

What it does

Web Sequence is a Chrome extension that saves your time and helps you avoid common mistakes when drawing sequence diagrams. You don't need to drag and drop or resize. Just type in your code (a DSL but like Java and C#) and a diagram is generated for you. Just added HTTPS support. If you are experience issues, please leave comments.

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  Diagram as code tool with draggable customizationsOct 2025 · github.com · ▲266

  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…

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  Programmatically Generate Diagrams for GitHub Readmes2019 · github.com · ▲220

  🧜‍♀️ RESTful rendering pipeline for generating sequence and UML diagrams using Mermaid for Markdown docs (Diagrams as a Service) - Schachte/Mermrender

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  I've created a tool to design sequence diagrams with my team2020 · diagrams.menduz.com · ▲29

  Create sequence diagrams online in real time

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