PlantUML Viewer

Shows graphs and diagrams rendered by PlantUML (UML, Ditaa and Dot).

What is PlantUML Viewer?

'PlantUML Viewer' is a Chrome extension designed to render UML diagrams based on the definitions provided in a text file. It auto-updates diagrams when changes are detected in the given URL file and supports user-defined server URLs. The extension recognizes PlantUML, Ditaa, and Dot graphs.

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Stats

By: Peter Prikryl

View on Chrome Web Store

Users: 30,000+

Rating: 3.85 (103)

Version: 1.2 (Last updated: 2021-04-09)

Creation date: 2020-05-24

Risk impact: Low risk impact

Risk likelihood: Very low risk likelihood

Manifest version: 2

Size: 37.81K

Email: pe*****@gmail.com

URLs: Privacy policy

Stats date:

Chrome-Stats Rank

# 5067 ▼ 94

Other rankings

#555 in Developer Tools

#105 in author keyword 16 ▲ 2

#135 in viewer keyword 76

#212 in server keyword 52 ▲ 9

#264 in file keyword 49 ▼ 3

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Other platforms

Not available on Firefox

Not available on Edge

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Summary

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PlantUML

Renders UML diagram as defined in a text file. For full syntax of the text file, see: http://plantuml.sourceforge.net/index.html

Install the extension from Chrome Web Store.
Open text file from web server with UML diagram definition in browser (the text starts with @startuml).
See the rendered UML diagram!

Chrome does not allow fetching content from local files anymore, so you have to start a local web server that will serve the local text file. One simple way if you have Python 3 is to run python -m http.server command in the directory with your PlantUML files.

Features

Automatically updates the diagram when the file at given URL is changed.
You can use your own server by changing the server URL in the popup of the action button (action button is displayed while viewing PlantUML files).

User reviews

User reviews summary

These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.

Pros

Useful tool, refreshes upon saving updates in text editor.
It has plugin support.
It can handle small UML diagrams successfully.
Some users found it helpful and convenient.
Some users liked the product.
Has the ability to handle and display mindmap diagrams.

Cons

Problems in displaying larger UML files.
Doesn't parse the preprocessors '!include'.
Completely doesn't work for some users.
Doesn't support the newpage command.
Some users are concerned about user data being sent to an external server without notice, privacy issues.
The tool stopped working for some users that used to enjoy it.

Most mentioned

Chrome extension is not working.
Problems with displaying larger UMLs.
Data privacy issues.

Recent reviews

A heads-up to anyone using the extension: it uses a servlet at PlantUML.com and not your local instance of plantuml.jar to render diagrams. Be aware that your design is being sent out to an external server to render the diagrams - you are sending out your design to an unknown party for rendering. I was expecting that it would use my local instance of PlantUML. Is there a way to override this and have the plugin use my JAR instead of the server? I see I can point to a different server, and switch from the default IMG to SVG/TXT... can I just point to my JAR somehow? If I discover that I can switch the default behaviour to use the plantuml.com server to render I will update the rating.