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				README.md
			
		
		
	
	english | русский
SVGO  
  
 
SVG Optimizer is a Nodejs-based tool for optimizing SVG vector graphics files.
Why?
SVG files, especially those exported from various editors, usually contain a lot of redundant and useless information. This can include editor metadata, comments, hidden elements, default or non-optimal values and other stuff that can be safely removed or converted without affecting the SVG rendering result.
What it can do
SVGO has a plugin-based architecture, so almost every optimization is a separate plugin.
Today we have:
| Plugin | Description | Default | 
|---|---|---|
| cleanupAttrs | cleanup attributes from newlines, trailing, and repeating spaces | enabled | 
| inlineStyles | move and merge styles from <style>elements to elementstyleattributes | enabled | 
| removeDoctype | remove doctype declaration | enabled | 
| removeXMLProcInst | remove XML processing instructions | enabled | 
| removeComments | remove comments | enabled | 
| removeMetadata | remove <metadata> | enabled | 
| removeTitle | remove <title> | enabled | 
| removeDesc | remove <desc> | enabled | 
| removeUselessDefs | remove elements of <defs>withoutid | enabled | 
| removeXMLNS | removes xmlnsattribute (for inline svg) | disabled | 
| removeEditorsNSData | remove editors namespaces, elements, and attributes | enabled | 
| removeEmptyAttrs | remove empty attributes | enabled | 
| removeHiddenElems | remove hidden elements | enabled | 
| removeEmptyText | remove empty Text elements | enabled | 
| removeEmptyContainers | remove empty Container elements | enabled | 
| removeViewBox | remove viewBoxattribute when possible | enabled | 
| cleanupEnableBackground | remove or cleanup enable-backgroundattribute when possible | enabled | 
| minifyStyles | minify <style>elements content with CSSO | enabled | 
| convertStyleToAttrs | convert styles into attributes | enabled | 
| convertColors | convert colors (from rgb()to#rrggbb, from#rrggbbto#rgb) | enabled | 
| convertPathData | convert Path data to relative or absolute (whichever is shorter), convert one segment to another, trim useless delimiters, smart rounding, and much more | enabled | 
| convertTransform | collapse multiple transforms into one, convert matrices to the short aliases, and much more | enabled | 
| removeUnknownsAndDefaults | remove unknown elements content and attributes, remove attrs with default values | enabled | 
| removeNonInheritableGroupAttrs | remove non-inheritable group's "presentation" attributes | enabled | 
| removeUselessStrokeAndFill | remove useless strokeandfillattrs | enabled | 
| removeUnusedNS | remove unused namespaces declaration | enabled | 
| prefixIds | prefix IDs and classes with the SVG filename or an arbitrary string | disabled | 
| cleanupIDs | remove unused and minify used IDs | enabled | 
| cleanupNumericValues | round numeric values to the fixed precision, remove default pxunits | enabled | 
| cleanupListOfValues | round numeric values in attributes that take a list of numbers (like viewBoxorenable-background) | disabled | 
| moveElemsAttrsToGroup | move elements' attributes to their enclosing group | enabled | 
| moveGroupAttrsToElems | move some group attributes to the contained elements | enabled | 
| collapseGroups | collapse useless groups | enabled | 
| removeRasterImages | remove raster images | disabled | 
| mergePaths | merge multiple Paths into one | enabled | 
| convertShapeToPath | convert some basic shapes to <path> | enabled | 
| convertEllipseToCircle | convert non-eccentric <ellipse>to<circle> | enabled | 
| sortAttrs | sort element attributes for epic readability | disabled | 
| sortDefsChildren | sort children of <defs>in order to improve compression | enabled | 
| removeDimensions | remove width/heightand addviewBoxif it's missing (opposite to removeViewBox, disable it first) | disabled | 
| removeAttrs | remove attributes by pattern | disabled | 
| removeAttributesBySelector | removes attributes of elements that match a css selector | disabled | 
| removeElementsByAttr | remove arbitrary elements by ID or className | disabled | 
| addClassesToSVGElement | add classnames to an outer <svg>element | disabled | 
| addAttributesToSVGElement | adds attributes to an outer <svg>element | disabled | 
| removeOffCanvasPaths | removes elements that are drawn outside of the viewbox | disabled | 
| removeStyleElement | remove <style>elements | disabled | 
| removeScriptElement | remove <script>elements | disabled | 
| reusePaths | Find duplicated elements and replace them with links | disabled | 
Want to know how it works and how to write your own plugin? Of course you want to. (동작방법)
Installation
$ [sudo] npm install -g svgo
Usage
CLI
Usage:
  svgo [OPTIONS] [ARGS]
Options:
  -h, --help : Help
  -v, --version : Version
  -i INPUT, --input=INPUT : Input file, "-" for STDIN
  -s STRING, --string=STRING : Input SVG data string
  -f FOLDER, --folder=FOLDER : Input folder, optimize and rewrite all *.svg files
  -o OUTPUT, --output=OUTPUT : Output file or folder (by default the same as the input), "-" for STDOUT
  -p PRECISION, --precision=PRECISION : Set number of digits in the fractional part, overrides plugins params
  --config=CONFIG : Config file or JSON string to extend or replace default
  --disable=PLUGIN : Disable plugin by name, "--disable=PLUGIN1,PLUGIN2" for multiple plugins
  --enable=PLUGIN : Enable plugin by name, "--enable=PLUGIN3,PLUGIN4" for multiple plugins
  --datauri=DATAURI : Output as Data URI string (base64, URI encoded or unencoded)
  --multipass : Pass over SVGs multiple times to ensure all optimizations are applied
  --pretty : Make SVG pretty printed
  --indent=INDENT : Indent number when pretty printing SVGs
  -r, --recursive : Use with '-f'. Optimizes *.svg files in folders recursively.
  -q, --quiet : Only output error messages, not regular status messages
  --show-plugins : Show available plugins and exit
Arguments:
  INPUT : Alias to --input
- 
with files: $ svgo test.svgor: $ svgo *.svg$ svgo test.svg -o test.min.svg$ svgo test.svg other.svg third.svg$ svgo test.svg other.svg third.svg -o test.min.svg -o other.min.svg -o third.min.svg
- 
with STDIN / STDOUT: $ cat test.svg | svgo -i - -o - > test.min.svg
- 
with folder $ svgo -f ../path/to/folder/with/svg/filesor: $ svgo -f ../path/to/folder/with/svg/files -o ../path/to/folder/with/svg/output$ svgo *.svg -o ../path/to/folder/with/svg/output
- 
with strings: $ svgo -s '<svg version="1.1">test</svg>' -o test.min.svgor even with Data URI base64: $ svgo -s 'data:image/svg+xml;base64,...' -o test.min.svg
- 
with SVGZ: from .svgzto.svg:$ gunzip -c test.svgz | svgo -i - -o test.min.svgfrom .svgto.svgz:$ svgo test.svg -o - | gzip -cfq9 > test.svgz
Other Ways to Use SVGO
- as a web app – SVGOMG
- as a Nodejs module – examples
- as a Grunt task – grunt-svgmin
- as a Gulp task – gulp-svgmin
- as a Mimosa module – mimosa-minify-svg
- as an OSX Folder Action – svgo-osx-folder-action
- as a webpack loader – image-webpack-loader
- as a Telegram Bot – svgo_bot
- as a PostCSS plugin – postcss-svgo
- as an Inkscape plugin – inkscape-svgo
- as a Sketch plugin - svgo-compressor
- as macOS app - Image Shrinker
- as a Rollup plugin - rollup-plugin-svgo
Backers
|  | |
|---|---|
| SheetJS LLC | Fontello | 
Donations
- PayPal: https://www.paypal.me/deepsweet
License and Copyright
This software is released under the terms of the MIT license.
Logo by Yegor Bolshakov.