Dev tools · alternatives · 2026
24 alternatives to PlantUML Web Editor
Create, collaborate, and share UML diagrams
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
- 1
A collaborative UML editor; build with etherpad and plantuml - AlexITC/collabuml
2023 · github.com · its alternatives →
- 2
TAKTIK88 menghadirkan perpaduan strategi, gaya bermain, dan nuansa sultan paling prestisius. Temukan informasi menarik, inspirasi taktik, serta pengalaman digital berkelas dalam satu tempat.
2020 · collabuml.com · its alternatives →
- 3
Hi HN! I couldn’t find a truly user-friendly PlantUML editor, so I set out to build one. PlantDiagrams lets you describe a diagram in plain English; it generates the PlantUML and renders it instantly. The goal is to shorten the path from idea → diagram without fighting the editor. Tech: - Next.js / Supabase / FLy.io / Vercel Highlights - Natural-language to PlantUML with live preview - Export diagrams (SVG/PNG/TXT) - Organize work with Projects - Share via link; optional comments for review - Sample gallery to open and tweak examples Try it:…
2025 · plantdiagrams.com · its alternatives →
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Figma 1.0▲705The first interface design tool with real-time collaboration
2016 · figma.com · its alternatives →
- 6
Visual Editor▲504Edit web apps visually in the Cursor Browser
Dec 2025 · cursor.com · its alternatives →
- 7
Creately 3.0▲365The simplest way to visualize ideas, plans & processes
2020 · creately.com · its alternatives →
- 8
GraphQL Editor▲156Online GraphQL IDE, visualize your GraphQL Schema
2019 · graphqleditor.com · its alternatives →
- 9
🧜♀️ 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 →
- 10
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 →
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Inspired by the design and UI/UX of apps like Notion, and utility of open-source apps like StackEdit, I decided to create a minimalistic, local-only WYSIWYG Markdown editor. Some features worth highlighting: - Monaco editor and Prettier integration for code snippets - Tables (apparently the holy grail of WYSIWYG editing) - Embeds (for CodePen, CodeSandbox and YouTube, most useful for HTML or JSON exports) - Accepts Markdown paste-in, and "exports"/generates HTML, Markdown and JSON outputs - Collaboration (with real-time awareness and initial commenting system, available only when…
2023 · editor.vrite.io · its alternatives →
- 13QS
2013 · app.umlbin.com · its alternatives →
- 14WM
2018 · demo.hyperfiddle.net · its alternatives →
- 15WT
2022 · plant.jim-fx.com · its alternatives →
- 16
GanttTool▲125Online project Gantt charts builder with instant exports
Dec 2025 · gantttool.com · its alternatives →
- 17
Figma Platform▲327Unlock your design files with our new web API
2018 · developers.figma.com · its alternatives →
- 18
Create beautiful user flow charts, sitemaps and wireframes
2020 · antforfigma.com · its alternatives →
- 19
This is a recent addition to Vexlio which I think the HN crowd may find interesting or useful. TL;DR: easy creation of interactive diagrams, meaning diagrams that have mouse click/hover hooks that you can use to display pop-up content. The end result can be shared with a no-sign-in-required web link. My thought is that this is useful for system docs, onboarding or user guides, presentations, etc. Anything where there is a high-level view that should remain uncluttered + important metadata or details that still need to be available somewhere. You can try it out without signing up for…
2017 · vexlio.com · its alternatives →
- 20
Hubql CLI▲119Create data schema visualizations from your terminal
2024 · schemavisualizer.dev · its alternatives →
- 21IV
Create sequence diagrams online in real time
2020 · diagrams.menduz.com · its alternatives →
- 22
CSS.GUI▲201Open source visual editors for everything in the CSS spec
2022 · components.ai · 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 →