urldecoder is a userscript for easy pasting of links into wikicode.

How to use it:

• paste any URL
• (if desired) type a blank space and then the link name (what will be displayed):

http://de.wikipedia.org/wiki/Ding this page|

• select (highlight) the text you want decoded
• press the button to get this:

[[:de:Ding|this page]]

The script will:

• automatically add brackets to form an external link,
• make it an internal link (if possible) using most Interwikimedia prefixes,
• percent-decode URL: a %26 b → a & b

  which is mostly useful in non-Latin wikis where most URLs look like %D1%EB%F3%E6…

• convert (now outdated) secure.wikimedia.org links to normal.

The script will simplify all URLs inside the text you select; it is not limited to processing a single url.

Installation

Add this to your js file:

// [[user:js/urldecoder]]
importScript('user:js/urldecoder.js');

For other MediaWiki projects:

mw.loader.load('//en.wikipedia.org/w/index.php?title=user:js/urldecoder.js&action=raw&ctype=text/javascript');

Notes

• When converting URL to a local internal link the script will add a leading colon if:

  the link is category, file or interwiki,

  and the page is not article or category.

• The script also decodes anchors, although in some rare cases the correct decoding is simply impossible. For example, #2$ и #2.24 produce the same encoded anchor.
• It works with both old and new toolbar.
• It is a gadget in Russian Wikipedia.

Optional parameters

urlDecoderKey = 'c' //accesskey (works only in old toolbar)
urlDecoderIntLinks = true //also try to simplify existing [[internal links]] in selected text

See also

• Template:Urltowiki, a template which performs a similar function to this script