Simple tool to transform svg files and Strings into Object or JSON.

Useful to manipulate SVG with js, to store in noSQL databses.

v2 docs

yarn add svgson

const { parse, stringify } = require('svgson')

// ----------------------------
// Convert SVG to JSON AST
// ----------------------------
parse(`
  <svg>
    <line
      stroke= "#bada55"
      stroke-width= "2"
      stroke-linecap= "round"
      x1= "70"
      y1= "80"
      x2= "250"
      y2= "150">
    </line>
  </svg>`).then((json) => {
  console.log(JSON.stringify(json, null, 2))
  /*
    {
      name: 'svg',
      type: 'element',
      value: '',
      attributes: {},
      parent: null,
      children: [
        {
          name: 'line',
          type: 'element',
          value: '',
          attributes: {
            stroke: '#bada55',
            'stroke-width': '2',
            'stroke-linecap': 'round',
            x1: '70',
            y1: '80',
            x2: '250',
            y2: '150'
          },
          parent: null,
          children: []
        }
      ]
    }
  */

  // -------------------------------
  // Convert JSON AST back to SVG
  // -------------------------------
  const mysvg = stringify(json)
  /* returns the SVG as string */
})

const svgson = require('svgson')
svgson
  .parse(
    `<svg>
      <line
        stroke= "#bada55"
        stroke-width= "2"
        stroke-linecap= "round"
        x1= "70"
        y1= "80"
        x2= "250"
        y2= "150">
      </line>
    </svg>`
  )
  .then(function(json) {
    console.log(JSON.stringify(json, null, 2)
  )
 
mysvg = svgson.stringify(json)
  

Test in browser here

svgson.parse(input[, options])

Returns: Promise

• input

  Type: String

• options.transformNode

  Function to apply on each node when parsing, useful when need to reshape nodes or set default attributes.

  Type: Function that returns the node

  Default:

  function(node){
    return node
  }

• options.camelcase

  Apply camelCase into attributes

  Type: Boolean

  Default: false

Added in 3.1.0

svgson.parseSync(input[, options])

This function is a synchronous version of svgson.parse. The arguments are the same, but unlike svgson.parse, the return value is not wrapped in a Promise.

Returns: Object [Object]

svg = svgson.stringify(ast[, options])

Returns: String

• ast

  svgson parsed result.

  Type: Object [Object]

• options.transformAttr

  Function to apply on each attribute when stringifying.

  Type: Function that returns the key/attribute string with the ability to use the escape function on it.

  Default:

  function(key, value, escape) {
    return `${key}="${escape(value)}"`
  }

• options.transformNode

Function to apply on each node when stringifying, useful when need to reshape nodes or change/update values.

Type: Function that returns the node

Default:

function(node){
  return node
}

• options.selfClose

  Type: Boolean

  Default: true

• Pretty Printing

  In order to generate pretty formatted SVG output, use pretty npm module:

  pretty = require('pretty')
  formatted = pretty(svg)

svgson-cli Transform SVG into Object from the Command Line

element-to-path Convert SVG element into path

path-that-svg Convert entire SVG with path

svg-path-tools Tools to manipulate SVG path (d)

MIT © Lionel T