Dev tools · alternatives · 2026
24 alternatives to UMLBoard
A lightweight UML class designer
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. UMLBoard launched in 2022; newer entries below may have overtaken it.
- 1
🧜♀️ RESTful rendering pipeline for generating sequence and UML diagrams using Mermaid for Markdown docs (Diagrams as a Service) - Schachte/Mermrender
2019 · github.com · its alternatives →
- 2QS
2013 · app.umlbin.com · its alternatives →
- 3
Witeboard▲1,017A real-time whiteboard for your team. No signups required.
2018 · witeboard.com · its alternatives →
- 4
Create diagrams without touching your mouse. Generate informal, class, sequence, state, gantt, user journey or entity-relationship diagrams using only the keyboard.
2021 · gleek.io · its alternatives →
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2025 · docs.mermaidchart.com · its alternatives →
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Bhava▲316Transform your ideas into professional diagrams instantly with Bhava
2025 · bhava.app · its alternatives →
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A collaborative UML editor; build with etherpad and plantuml - AlexITC/collabuml
2023 · github.com · its alternatives →
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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 · its alternatives →
- 11
Hi HN folks, I'm a co-creator of the Dapr CNCF project and co-founder of Diagrid. Today we announced a free-to-use web app that takes any form of workflow diagram (UML, BPMN, scribble in your favorite drawing tool or even on paper) and generates code that runs in any IDE and that can be deployed to Kubernetes and other container based systems, based on Dapr's durable execution workflow engine. This essentially allows you to run durable workflows in minutes and leaves out the guesswork for how to structure, code and optimize a code-first workflow app. I'm happy for you to give this a try and…
2025 · workflows.diagrid.io · its alternatives →
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- 14US
2018 · vgurianov.github.io · its alternatives →
- 15
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 · its alternatives →
- 16CD
2020 · clouddraw.app · its alternatives →
- 17CD
CloudSkew is an online editor for making flowcharts, diagrams (including AWS, Azure, GCP, Kubernetes, OCI architecture diagrams) and more!
2020 · cloudskew.com · its alternatives →
- 18
Copy and sync components with Class Sync Chrome Extension
2024 · tructiepkeobongda.com · its alternatives →
- 19
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Diagrams for Mac▲196A diagram editor for visualizing structures and processes
2020 · diagrams.app · its alternatives →
- 21
The PocketBase visual persoective
2023 · pocketbase-uml.github.io · its alternatives →
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Quick Diagram▲121A tool for generating diagrams and flowcharts from text.
2020 · quickdiagram.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →