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simplifies converting utf8 strings to ASCII strings which can be used as readable URL-segments.

This node library simplifies converting utf8 strings to ASCII strings which can be used as readable URL-segments

If you're happily using node-urlify, please leave an entry at the wiki. Thank you!

# npm install urlify
# git clone git://
# cd node-urlify
# make build

This compiles a browserbuild version to dist/urlify.js

var urlify = require('urlify').create(options);
<!DOCTYPE html>
        <meta charset="utf-8" />
        <script type="text/javascript" src="dist/urlify.js"></script> 
        <script type="text/javascript">
            var urlify = Urlify.create(options);
  • options (optional) is a config map and can contain the following:
    • addEToUmlauts default: false replaces 'ä', 'ö', and 'ü' with 'ae', 'oe', and 'ue' instead of 'a', 'o', and 'u'.
    • szToSs default: true if true replaces 'ß' with 'ss', otherwise with 'sz'.
    • spaces default: "_" replaces whitespace characters with this character.
    • toLower default: false converts all uppercase ASCII characters to lowercase.
    • nonPrintable default: "_" replaces other non-ASCII characters with this character.
    • trim default: false replaces multiple whitespaces/non-ASCII characters by one placeholder.
    • failureOutput default: "non-printable" returned result if output is reduced to an empty string.
    • extendString default: false If true, extends String object with urlify method. So after calling the constructor, you can use "Hello World".urlify()
  • returns: a configured function: function(string, options)
    • string may a string to be urlified
    • options overwrite above options. extendString has no effect.

If extendString is true, you may also use "Hello World".urlify() to urlify strings.

var urlify = require('urlify').create({
urlify("das eiskalte Händchen")
// 'das_eiskalte_Haendchen' 
urlify("das eiskalte Händchen", { addEToUmlauts:false })
// 'das_eiskalte_Handchen' 
urlify("Heiße Suppe")
// 'Heisse_Suppe' 
urlify("Heiße Suppe", { szToSs:false })
// 'Heisze_Suppe' 
// 'Soon' 
urlify("This is very important!!! Please read!!!")
// 'This_is_very_important_Please_read' 

The tests are based on expect.js by learnBoost.

To run the tests in node use

make test

To run them in your browser use

make test-browser