Compaction is the method of minimizing the quantity of data required for a given piece of information to be stored or transmitted, usually by the use of encoding techniques. The decoded string will be shown at the box below in an instant.Compression algorithms are an important aspect of computer science. Paste the encoded text or URL to the box and click the Decode button. An example is receiving an email with the subject ” RE%3A%20Copyright%20Infringement%20Notice%20ID%3A%20XXX%2DXXXXXXX” and you’d have to refer to the percent encoding table to manually replace the percent encoding with a real symbol.Ī simple solution is to visit a website that offers percent encoding conversion for free. Most of the time the percent encoding does not cause any problems but it would be difficult to read if you have a message that has percent encoding in it. You would have also noticed that the empty space is being encoded to the plus + sign for all 3 browsers and this is because it is in the query part of a URL. As for unsafe characters, Firefox ignores 11 characters out of 14, Chrome ignores 3 out of 14 and IE encodes all unsafe characters to percent encoding. So to make things easier, the common characters that are safe and unreserved don’t ever need to be percent encoded while the reserved and unsafe characters may have to be percent encoded.Īfter testing Internet Explorer, Mozilla Firefox and Google Chrome, only IE doesn’t encode from the reserved character to percent encoding. The fact is every character on your keyboard can be converted into a percent encoding but it would be too troublesome and cryptic to encode every character.
Interestingly if you copy the URL containing the blank space character from Firefox and paste it into Notepad, the blank space will be converted back into %20 percent encoding. However, for Google Chrome and Internet Explorer the percent encoding is maintained and not automatically replaced with a blank space. The link below points to a YouTube icon with a 256×256 dimension and there is a percent encoding %20 in the middle of the filename.Ĭopying and pasting the link into a Firefox web browser URL bar and hitting the enter key will instantly change the %20 percent encoding character into a blank space. Let’s take a real live hyperlink as an example. A common example is %20 and they are called percent encoding. You may have once in a while stumbled on a hyperlink from an email message or even a website containing two digits preceded by a percent sign.
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