imageinliner

npm install -g imageinliner

Tool for inlining background data-uri's into css files.

imageinliner -i style.css -o outputStyle.css

To overwrite the input file instead of outputting to a separate file, add the --overwrite flag.

imageinliner -i style.css --overwrite

When referring to images using source root (/some/images) the imageinliner need to know from where to calculate the root path. Use the --rootPath parameter.

imageinliner -i style.css -o outputStyle.css --rootPath /some/images

imageinliner will reformat the css (line breaks and indentations). To preserve compression and output all in one line, pass the --compress flag.

imageinliner -i style.css -o outputStyle.css --compress

Base64 images is somewhat larger than size of image by itself. Inlining files above 10k is not recommended. Best performance can be achieved for smaller files, where the http setup accounts for a large portion of the transfer.

Pass a limiter (in byte) using the --sizeLimit parameter to exclude images above the sizeLimit.

imageinliner -i style.css -o outputStyle.css --sizeLimit 10240

Multiple parameters can be combined

imageinliner -i style.css -o outputStyle.css --rootPath /some/images --sizeLimit 10240 --compress

The imageinliner module can also be used from node.

with file path

var inliner = require("imageinliner");

var cssData = inliner.file("style.css", {
    maxImageFileSize:   10240,
    rootImagePath:      "some/directory",
    compressOutput:     true
});

with css string

var inliner = require("imageinliner");

var cssData = inliner.css(css, {
    maxImageFileSize:   10240,
    cssBasePath:        "some/directory/css"
    rootImagePath:      "some/directory",
    compressOutput:     true
});

License

The MIT License (MIT)

Copyright (c) 2014 Kent Andersen <[email protected]>

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.