npm package discovery and stats viewer.

Discover Tips

  • General search

    [free text search, go nuts!]

  • Package details

    pkg:[package-name]

  • User packages

    @[username]

Sponsor

Optimize Toolset

I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.

About

Hi, 👋, I’m Ryan Hefner  and I built this site for me, and you! The goal of this site was to provide an easy way for me to check the stats on my npm packages, both for prioritizing issues and updates, and to give me a little kick in the pants to keep up on stuff.

As I was building it, I realized that I was actually using the tool to build the tool, and figured I might as well put this out there and hopefully others will find it to be a fast and useful way to search and browse npm packages as I have.

If you’re interested in other things I’m working on, follow me on Twitter or check out the open source projects I’ve been publishing on GitHub.

I am also working on a Twitter bot for this site to tweet the most popular, newest, random packages from npm. Please follow that account now and it will start sending out packages soon–ish.

Open Software & Tools

This site wouldn’t be possible without the immense generosity and tireless efforts from the people who make contributions to the world and share their work via open source initiatives. Thank you 🙏

© 2025 – Pkg Stats / Ryan Hefner

puml2json

v0.9.12

Published

PlantUML to json generator

Downloads

28

Readme

JavaScript Style Guide License badge

PlantUML json generator (puml2json)

a command line utility that convert PlantUML -text file that represent component UML diagram to JSON. This fork is based on puml2code .

puml2json supports only a subset of the PlantUML language.

Installation

Global installation brings puml2json command to PATH

$ npm i -g puml2json

Development installation

$ git clone https://github.com/robbito/puml2json.git
$ npm i
$ bin/puml2json -h

Running tests

$ npm test

Supported features

  • puml parser engine: pegjs

NOTE:

The parser only supports a small subset of PlantUML features. Have a look at the examples folder.

Problems?

  • If puml2json causes error like:

    Error: line: 21 column: 3: SyntaxError: Expected "'", "--", "..", "__", "abstract ", 
    "class ", "hide empty members", "interface ", "namespace ", "note ", "skinparam", "title ",
    [ \t], [#], [+], [A-Za-z_], [\-], [\n], [\r\n], [^ ,\n\r\t(){}], or [}] but "{" found.

    it's most probably because PEG.js based grammar does not have support for plantuml format you have in input file.

    What should I do?

    Please raise ticket with example plantuml file that does not work

  • generated json does not look like you expected

    What should I do?

    Please raise ticket with example plantuml file and generated json with some description how it should look like.

NOTE If you are able to create PR that solves your issue it would be even more welcome.

Usage

$ puml2json -h
Usage: puml2json [options]

Options:
  -V, --version       output the version number
  -i, --input [file]  input .puml file, or "stdin"
  -o, --out [path]    Output path. When not given output is printed to console.
  -h, --help          output usage information

Examples:
  $ puml2json -i input.puml
  $ puml2json -h
Use DEBUG=puml2json env variable to get traces. Example:
  $ DEBUG=puml2json puml2json -i input.puml

LICENSE:

MIT