A Single Function Site


Added on: August 24th, 2009

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ByteSizeMatters is a very simple website that tells you the size of a piece of text in bytes/KB/MB/etc (whatever fits) with or without the whitespace. Mainly useful for front-end web developers, since in JavaScript or CSS, bytesize really does matter.


  • Allows multiple snippets of text to be entered, for easier comparison
  • Accounts for line terminator differences across OS’ (in Windows a line terminator is 2 bytes, in Unix-based systems it’s 1 byte)
  • Can ignore whitespace (useful for JS/CSS that is going to be minified)

ByteSizeMatters is the creation of Fresset Ltd, and if you are interested in learning about the story behind the website, check out this post.

Suggested by: Lea