PlantUML Web Server

Official PlantUML web server where you type UML text and get the rendered diagram with shareable URL.

Artifact by PlantUML

IndexedLGPL-3.0★ 13,388Charts & diagramsNo sign-up

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Opens plantuml.com in a new tab. Nothing to install.

Open PlantUML Web Server Source code

You provide: PlantUML code
You get: UML diagram as PNG, SVG or text
Account: No sign-up needed
AI: No AI: a plain tool
Your input: Not stated: check the tool's privacy notes before using private data
Price: Free to use
Made with: Open-source web app
Source: Open source
Link check: Answered on Oct 31, 2026

About

PlantUML Web Server is an open-source web app in the visualization category (uml). It opens in your browser, so there is nothing to install. You provide plantUML code and get UML diagram as PNG, SVG or text. It needs no account. It is a plain tool: no AI model is involved. The source code is public on GitHub (plantuml/plantuml).

Category: Charts & diagrams · uml

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Stars: 13,388

Details

Auth: No auth
License: LGPL-3.0
Repository: github.com/plantuml/plantuml
Website: www.plantuml.com/plantuml/uml/
First seen: Oct 31, 2026
Last checked: Oct 31, 2026
Source: GitHub

Cite this page

PlantUML Web Server: free online tool. Agent Mart. https://agentmart.dev/artifacts/plantuml-web-server (last updated 2026-10-31)