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.
+ 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.
This review was originally posted on VersionTracker.com. After trying 3 other programs, only Blue Crab was able to download for off-line viewing of the entire site. It maintained all the links etc Wonderful! It may be a bit unMac-like but that can improve later. It does what it says it will do, that's important!
This review was originally posted on VersionTracker.com. Not one, not two, but FIVE different page grabbers in one application. One gives you full control and a detailed progress report as it crawls and grabs as much or as little as you want. One does the same thing but has a simplified display. One grabs only the page or two at the url you give it. One grabs images only, displaying them as they are grabbed. The fifth crawls pages or sites from urls in a text document you import, like a list of downloadable files contained in an email. Easy to use. Even does a thorough job of creating a browser-friendly copy of database-driven websites on your Mac. All that "whatever.php" server-side silliness is no problem. Blue Crab has more useful features than any two other similar apps combined. And to top it all, there's a friendly, responsive, knowledgeable person answering your support emails. Blue Crab is a bargain at twice the price.
This review was originally posted on VersionTracker.com. This program is amazing, and the developer was very helpful when I had questions about various features which are available using configuration files. In particular I was shown how to setup the program to download websites "as is" for comparison, backup and the discovery of broken links. (Out of the box Blue Crab will modify page hyperlinks so that you can browse them when you don't have access to the web, which is a great feature, but sometimes you want the pages unaltered.)
I've been using this program for about 1 year now, and appreciate that the developer consistently provides (freqent) software updates enhancing the program on an almost continuous basis. Thank you again for making this product!
This review was originally posted on VersionTracker.com. I had been looking for some way to get some on-line lessons to people with no high speed service. Blue Crab turned out to be the solution. The hardest part was running through the sites again to count how many layers down to go to get it all.
I have a folder for each one now -- that enables me to burn a CD or DVD that takes the whole site to whoever.
I have not had to ask for support-- it is fairly intuitive and the included tour makes the usage easy.
This review was originally posted on VersionTracker.com. Blue Crab is an excellent application and does what it says extremely well.
The developer is very responsive to updates and feature requests, and many times provides "configurations" and instructions for people like me, not very computer savy.
I highly recommend this application for downloading web sites for off-line viewing. 5 Stars
This review was originally posted on VersionTracker.com. What a great way to set up preferences for accessing sites! I love the layout, it's easy to figure out, but not dumbed down at all. Support was also excellent and prompt and helpful.
This review was originally posted on VersionTracker.com. I've been using this product in conjunction with indexing software to determine the suitabilit of sites for children, by looking at the word index of the downloaded pages. I can't imagine doing this manually, and therefore this program is proving to be indispensible for my task. Most sites I have worked have no problems at all. The program is very stable - I just wish it could be a bit faster ;)
I welcome the newest feature for logging into a website with my membership information.
- 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.