title: Is there any open source binary differ?
body: <p>From time to time, I need to compare files binarily, but is there any open source tool that can do this?</p>
  
  <p><a href="http://www.ultraedit.com/products/ultracompare.html" rel="nofollow noreferrer">UltraCompare</a> can, but it's a commercial product. </p>