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Blue Crab is a versatile and thorough program that you use to copy the contents of a Web site to your computer, in whole or in part, and then search or browse it offline.

Blue Crab lets you:

  • Conduct fast offline browsing and searching without an Internet connection.
  • Perform batch downloads of URL's
  • Create a snapshot of a website for historical archiving.
  • Batch download Web archives.
  • Collect specific types of resources such as images or email addresses.
  • Search current content more thoroughly than a search engine right on your own computer.
  • Check a more...

What's New

Version 5.1:
  • For document searching: updated the Spotlight indexer to support 64-bit Spotlight word extractors, which in particular fixes an issue with extracting words to create indexes of RTF files.
  • Removed the 2000-word limit on the number of words extracted. Previously an index would contain a maximum of 2000 unique words, now it includes as many as there are in the document.


  • OS X 10.5.8 or later

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4 14


Current Version (5.x)


Downloads 61,368
Version Downloads 319
License Commercial
Date 01 Feb 2015
Platform OS X / Intel 32
Price $24.99
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