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Blue Crab for Mac

Browse complete websites offline.

$24.99
In English
Version 5.1.2
3.6
Based on 15 user rates

Blue Crab overview

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.

Features:
  • 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 site for broken links, or generate an HTML sitemap
  • Create full page images of URL's (JPEG, BMP, TIFF, PNG, PSD, etc.)
  • Perform "Google Image Search" batch downloads: download images found using an image query on Google.

With Blue Crab you can download all the content including HTML, PDF, graphics, video, file archives, etc., or use selective filtering to restrict downloads to specific kinds of files. For example, you can choose to save only the JPEG images Blue Crab finds, or just the PDF's.

Blue Crab has a special feature called the "Media Grabber" which you can use to easily download just the images (or movies) on a Web site Moreover, you can view a slide show of the images as they are downloaded. You also have the option of "flattening" the images, i.e., putting them all into one folder, or preserving the folder structure on the server (just as when downloading a complete Web site for offline viewing.)

Blue Crab is always gentle on the server, processing only one URL at a time. (You can even make it pause between successive downloads so as to not overwhelm the server.)

The demo version you download now is fully functionaly and runs for about ten days.

Major Features:
  • Unique URL extraction algorithms yield very complete downloads compared to other products of this type.
  • You can download Web sites either for offline browsing, via re-linking of URL's, or to create virtual copies of them on your hard drive, i.e., backup a Web site as-is.
  • Supports both HTTP, HTTPS protocols as well as server realms. Detailed Grabber window shows server HTTP header response fields.
  • Optionally display Web pages as they are crawled using either your own Web browser or Blue Crabs own Web window.
  • You can restrict a crawl to just the initial domain, or allow the program to "stray" into offsite URL's
  • Blue Crab can remap "dynamic" URL's which contain path and search arguments so that resulting disk files are navigable offline.
  • Image URL's into JPEG files (or any other graphic file type supported by Quicktime) to create complete pictures of Web pages not possible simply by taking a single screen shot yourself.
  • Blue Crab provides its URL imaging ability as a service menu item available from other applications.
  • URL's can be imaged into files, or onto the clipboard.
  • Built-in directory search displays found files as a hierarchical list, with double-clickable entries.
  • A "batch window" enables you to download your own list of files. Simply drag and drop URL's into the batch window, or import them from an HTML file , or text file.
  • Grabbing in "images-only" mode just downloads image files, optionally "flattening" the results (i.e. putting all images into one folder.)
  • Reusable configuration settings control what is grabbed, saved or crawled:
  • Filter by size, date, file type or even content
  • Filter by filename, extension or path
  • Bookmarks window for storing frequently crawled Web sites
  • Supports form submissions to enable you to begin a crawl from a login page.
  • Supports cookies for more accurate downloads.
  • Generate site maps that consist of a hierarchical display of URL's Such maps can be optionally filtered by extension.
  • Find email addresses.
  • Customizable user-agent (spoofing) enables you to download Web sites which are platform specific.
  • Optionally receive email notifications of Blue Crab's progress during a lengthy crawl.
  • Dock badging provides visual feedback or progress when the program is in the background.
  • Google image search and download in batch.

Check the website for bundles and promos.

What’s new in version 5.1.2

Version 5.1.2:
  • Update for Mac OS 10.11
  • Fixed a bug opening the download directory from the grabber window (the 'Reveal' button), and similar problems with other convenience functions that open folders or files.
  • Fixed a bug that prevented the opening of the log file from the File menu, and similar problems with other instances for opening certain files.

Blue Crab for Mac

$24.99
In English
Version 5.1.2
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3.6

(24 Reviews of Blue Crab)

  • Comments

  • User Ratings

gordon-6
gordon-6
Oct 18 2017
5.1.2
2.0
Oct 18 2017
2.0
Version: 5.1.2
I was looking at buying this until I discovered how slooow it is, and then I discovered these reviews...... so I am not alone in being ignored by BC support, Goodbye BC,
RJC.NJNYC
RJC.NJNYC
Nov 6 2014
5.0.07
0.0
Nov 6 2014
0.0
Version: 5.0.07
AVOID. This developer is useless, as well as their website. I have their "Limit Point Software Utilities Bundle" where you get all of their apps with updates forever. Yeah, good luck. Anyone else having problems? Leave a comment, and maybe I'll start legal action to get them to honor their comments.
Fishscale
Fishscale
Jan 16 2014
5.0.06
0.0
Jan 16 2014
0.0
Version: 5.0.06
I noticed that one time limit point apps that were released eons before the mac app store have suddenly all disappeared and 404 is now the response. I might have missed the obvious but with the new site layout it is pretty bare so I am completely confused as to the state of limit point customers that purchased software now only available via MAS. We get coupons, etc.. or what? I prefer a DL from the developer but better MAS than nothing which is the drift I am getting but keeping fingers crossed is not the case. So all of us that paid for the "bundle" of every app in existence now and to be released in the future by limit-point for one flat price is now in what state dev? Just very surprised for a developer I have always praised for their dedication to customer needs over developing multiple apps that are overall useful (like many MAS devs) - Hell the limit point utilities bundle + the other bigger apps is by far the best deal I have encountered, especially when those one trick utilities were the only way to get the task done and accessed via context menu before services. I'm going to email developer directly, always good communication so if they don't post a response here first I will let others know what the deal is, if any (most likely me just being tired or dev not finished with a site upgrade etc... ) ...
ylluminate
ylluminate
Feb 16 2013
5.0.06
3.0
Feb 16 2013
3.0
Version: 5.0.06
I don't know. I was hopeful that this would be snappier than SiteSucker, but I'm seeing about a 4 times speed difference on the favor of SiteSucker really outperforming this app and being more "mac-like". Additionally, I have to say that I'm not real keen on the features and the terminology used. It's not horrible, particularly for someone who knows what they're doing, but I could see someone getting lost pretty quickly on a few of the points and the initial delay of the tooltips.
Simbasounds
Simbasounds
Dec 20 2012
5.0.06
5.0
Dec 20 2012
5.0
Version: 5.0.06
I agree with some of the comments that this is the best web extractor. I tried them all on several occasions, and always came back to Blue Crab.
gordon-6
gordon-6
Oct 18 2017
2.0
Oct 18 2017
2.0
Version: null
ylluminate
ylluminate
Feb 16 2013
3.0
Feb 16 2013
3.0
Version: null
Simbasounds
Simbasounds
Dec 20 2012
5.0
Dec 20 2012
5.0
Version: null
Sleav
Sleav
Dec 11 2012
4.5
Dec 11 2012
4.5
Version: null
Thaiwest
Thaiwest
Oct 22 2012
1.5
Oct 22 2012
1.5
Version: null
Pripyat
Pripyat
May 15 2011
2.5
May 15 2011
2.5
Version: null
L008com
L008com
Apr 3 2011
2.0
Apr 3 2011
2.0
Version: null
Caiyne
Caiyne
Mar 22 2011
4.0
Mar 22 2011
4.0
Version: null
Jan13
Jan13
Oct 8 2010
5.0
Oct 8 2010
5.0
Version: null
Kobalt
Kobalt
Oct 6 2010
5.0
Oct 6 2010
5.0
Version: null
Binarypackrat
Binarypackrat
Sep 1 2008
5.0
Sep 1 2008
5.0
Version: null
Itty
Itty
Apr 19 2008
5.0
Apr 19 2008
5.0
Version: null
Dinh
Dinh
May 27 2007
1.0
May 27 2007
1.0
Version: null
Jfm
Jfm
Feb 10 2006
4.8
Feb 10 2006
4.8
Version: null
Guest
Guest
Mar 23 2005
3.8
Mar 23 2005
3.8
Version: null