The Best Free Webcam Software app downloads for Mac: Zoom Webcam Settings EvoCam BT Cam iCamMaster BT Cam Sight Control Webcam Settings iMovie Enabler. Data Extraction Software Comparison. Use GetApp to find the best Data Extraction software and services for your needs. Our intuitive directory allows you to make an easy online Data Extraction software comparison in just a few minutes by filtering by deployment method (such as Web-based, Cloud Computing or Client-Server), operating system (including Mac, Windows, Linux, iOS, Android), pricing. About Web Data Extractor. Web Data Extractor Pro is a web scraping tool specifically designed for mass-gathering of various data types. It can harvest URLs, phone and fax numbers, email addresses, as well as meta tag information and body text. Special feature of WDE Pro is custom extraction of structured data.
So you tried to open a .rar file you downloaded on the Internet, or received from a colleague/friend via email. Then you get a weird error on your Mac, because the file couldn’t be opened.
It’s really disappointing. I’ve been there many times, since I use my MacBook Pro to communicate with others who are probably on a PC. In fact, I also ran into the same problem when I switched from PC to Mac a few years ago.
Web Extractor is an application designed to help you collect web data. Supports four ways to generate a list of URIs to collect: Text Importing, Number Range, Alphabet Range, and Date Range. Supports three types of content parsers: Start-End Matching, Regex Matching, and CSS Selector. As you are searching for the best open source web crawlers, you surely know they are a great source of data for analysis and data mining. Internet crawling tools are also called web spiders, web data extraction software, and website scraping tools. The majority of them are written in Java, but there is a good list of free and open code data extracting solutions in C#, C, Python, PHP, and Ruby.
Luckily, I managed to fix it with an amazing app called The Unarchiver, the best RAR extractor app for Mac. Plus, it’s still free. Meanwhile, I also tested dozens of other applications on my Mac, and filtered those that are 100% free and easy to use and you can read more below.
Web Scraper Software For Mac
NEW UPDATE
Hi there, Thanks for reading this article. It’s been two years since I first published this post. Things have changed a lot when it comes to unrar apps for Mac. I was hoping Apple macOS could add this feature to its built-in Archive Utility app, unfortunately, it seems that Apple macOS team doesn’t plan to do this. My MacBook Pro is now with the latest 10.13 High Sierra, and I have to rely on third-party apps to extract RAR files.
As for the best rar extractor app for Mac, the recommendation stays the same — The Unarchiver. It’s still free to download and use. However, it’s worth noting that the app has been acquired by MacPaw (the maker of CleanMyMac, an awesome Mac cleaning app) and is now part of the MacPaw family. You can read more from this press release.
Also, I just found a more powerful app called BetterZip 4 — which allows Mac users to not only extract many types of archives, but you can also use it to create archives or preview content of an archive without extracting. Those additional features are not available in The Unarchiver or Archive Utility. I recommend BetterZip to those of you who often need to handle a different kind of files on a PC and Mac. Note: BetterZip isn’t freeware ($24.95 for the paid version), but a free trial is offered. You can get BetterZip 4 from Setapp here.
What about the other apps listed below? I tried to check them now and then, just to make sure they’re usable and the information is accurate. But I find it so time-consuming because every year or so Apple releases a new version of macOS (to date, it’s High Sierra 10.13.2), those apps that fail to be updated often can’t run or malfunction. Therefore, I’d discourage you to check them out unless you are interested. That said, I’ll try my best to keep the content on this post as fresh as possible.
![]() What is an RAR File?
RAR is a compressed file short for Roshal Archive; it’s a proprietary file format developed by Eugene Roshal, a genius software engineer. Simply put, a .rar file is like a big data container that holds a set of individual files and folders inside.
Sd card formatter mac download. Why use RAR? Because it reduces the size of your files and folders while keeping all the content 100% intact. With a RAR, it’s much easier to store on removable media or transferred over the Internet.
Cod 4 modern warfare free download for mac. According to this comparison image provided by Compression Ratings, RAR files achieve much higher compression, especially on multimedia files. They are also easier to split or to recover once corrupted than other alternatives like ZIP or 7Zip files.
How to Open an RAR Archive on Mac?
Unlike other archive files, for example, a ZIP archive can be directly created or extracted by using the default function on Mac (here’s a tutorial), a RAR file can only be opened using third-party software…which, unfortunately, Apple hasn’t built into the Archive Utility, yet.
That’s why there are plenty of third-party applications available on the Internet that claim to be able to do that. Some are dated, while some require you to pay.
Thanks to those smart, yet kind developers, we have quite a lot of free options to get the job done without taking a penny out of the pocket. I’ve tested many and here are the 10 best free apps that still work.
10 Free RAR Extractor Apps That Work on Mac
Note: Some of the apps below are open source, and the authors accept donations. If you find the one you use is really awesome, kindly show your appreciation. Hundreds of hours were spent to make that product work well.
1. The Unarchiver
The Unarchiver is my favorite. Like the name indicates, it unpacks almost any archive instantly without launching the app. The app is very powerful, even does what the built-in Archive Utility can’t — extracts RAR archives. It also supports handling filenames in foreign character sets.
2. B1 Free Archiever
Another great open source app, the B1 Free Archiver serves as an all-in-one program for managing file archives. As you can see from the screenshot above, this tool allows you to create, open and extract archives. It opens .rar, .zip, and 35 other file formats. Besides Mac, there are also versions for Windows, Linux, and Android.
3. UnRarX
UnRarX is a simple utility designed to expand .rar files and restore corrupted or missing archives with .par and .par2 files. It has an extraction function as well. To do this, simply open the program, drag your archive files into the interface, and UnRarX will unpack the content to the specified destination.
4. StuffIt Expander Mac
StuffIt Expander for Mac allows you to uncompress both Zip and RAR archives. I found the app very easy to use. Once the program is installed, you should see an icon (as shown on the top of the above screenshot). Click on it. Next select the file, specify the destination to store your extracted files, and you’re done.
5. MacPar deLuxe
Another great tool that can open RAR files, and do a lot beyond! Originally developed to recover missing or corrupted information by processing “par” and “par2” files, MacPAR deLuxe is able to unpack the data with its built-in unrar engine. If you are a Macintosh user who frequently downloads or uploads binary files, then most likely you’ll love this utility program. You can get it from its official site here.
6. iZip for Mac
iZip is another powerful yet effective tool built from the ground up for Mac users to compress/decompress, secure, and share files easily. It supports all kinds of archive formats including RAR, ZIP, ZIPX, TAR, and 7ZIP. To unzip a file, just drag and drop it into the software main interface. Another window will pop up with the extracted files. Super fast!
7. RAR Extractor Free
RAR Extractor Free is an app that specializes in extracting Rar, Zip, Tar, 7-zip, Gzip, Bzip2 files conveniently and safely. Once you download and launch the app, you’ll see a pop-up window that asks you to specify an “unarchive” location. To load your files, you’ll need to move to the top left and click “Open.”
8. SimplyRAR (Mac)
SimplyRAR is another awesome archiving app for Mac OS. As its name suggests, SimplyRAR is a simple to use program that makes archiving and unarchiving files a breeze. Open it by dropping the file into the application, choosing a compression method, and pulling the trigger. The downside of the app is that it will be difficult to get support from the developer, as it appears they’re no longer in business.
9. RAR Expander
RAR Expander (Mac) is a clean GUI utility for creating and expanding RAR archives. It supports single, multi-part or password-protected archives. It also features AppleScript support and includes example scripts to help you handle multiple archives at once.
10. Zipeg
Zipeg is also handy yet free. What I really like is its ability to preview an entire file before extracting it. It also supports password protected and multipart files. Note: To open the software, you’ll need to install the legacy Java SE 6 runtime (see this Apple support article).
What’s Your Favorite UnRAR Tool?
Does the recommended one help you extract or unzip your RAR files? Or do you find a better unarchiver app for Mac than the ones listed above? Let me know by leaving a quick comment below.
As you are searching for the best open source web crawlers, you surely know they are a great source of data for analysis and data mining.
Internet crawling tools are also called web spiders, web data extraction software, and website scraping tools.
The majority of them are written in Java, but there is a good list of free and open code data extracting solutions in C#, C, Python, PHP, and Ruby. You can download them on Windows, Linux, Mac or Android.
Web content scraping applications can benefit your business in many ways. They collect content from different public websites and deliver the data in a manageable format. They help you monitoring news, social media, images, articles, your competitors, and etc.
On this page:
1. Scrapy
Scrapy is an open source and collaborative framework for data extracting from websites. It is a fast, simple but extensible tool written in Python. Scrapy runs on Linux, Windows, Mac, and BSD.
It extracting structured data that you can use for many purposes and applications such as data mining, information processing or historical archival.
Scrapy was originally designed for web scraping. However, it is also used to extract data using APIs or as a web crawler for general purposes.
Key features and benefits:
2. Heritrix
Heritrix is one of the most popular free and open-source web crawlers in Java. Actually, it is an extensible, web-scale, archival-quality web scraping project.
Heritrix is a very scalable and fast solution. You can crawl/archive a set of websites in no time. In addition, it is designed to respect the robots.txt exclusion directives and META robots tags.
Runs on Linux/Unixlike and Windows.
Key features and benefits:
3. WebSphinix
WebSphinix is a great easy to use personal and customizable web crawler. It is designed for advanced web users and Java programmers allowing them to crawl over a small part of the web automatically.
This web data extraction solution also is a comprehensive Java class library and interactive development software environment. WebSphinix includes two parts: the Crawler Workbench and the WebSPHINX class library.
The Crawler Workbench is a good graphical user interface that allows you to configure and control a customizable web crawler. The library provides support for writing web crawlers in Java.
WebSphinix runs on Windows, Linux, Mac, and Android IOS.
Key features and benefits:
4. Apache Nutch
When it comes to best open source web crawlers, Apache Nutch definitely has a top place in the list. Apache Nutch is popular as a highly extensible and scalable open source code web data extraction software project great for data mining.
Nutch can run on a single machine but a lot of its strength is coming from running in a Hadoop cluster.
Many data analysts and scientists, application developers, and web text mining engineers all over the world use Apache Nutch.
Apache Nutch is a cross-platform solution written in Java.
Key features and benefits:
5. Norconex
A great tool for those who are searching open source web crawlers for enterprise needs.
Norconex allows you to crawl any web content. You can run this full-featured collector on its own, or embed it in your own application.
Works on any operating system. Can crawl millions on a single server of average capacity. In addition, it has many content and metadata manipulation options. Also, it can extract page “featured” image.
Key features and benefits:
6. BUbiNG
BUbiNG will surprise you. It is a next-generation open source web crawler. BUbiNG is a Java fully distributed crawler (no central coordination). It is able to crawl several thousands pages per second. Collect really big datasets.
BUbiNG distribution is based on modern high-speed protocols so to achieve very high throughput.
BUbiNG provides massive crawling for the masses. It is completely configurable, extensible with little efforts and integrated with spam detection.
Key features and benefits:
7. GNU Wget
GNU Wget is a free and open source software tool written in C for retrieving files using HTTP, HTTPS, FTP, and FTPS.
The most distinguishing feature is that GNU Wget has NLS-based message files for many different languages. In addition, it can optionally convert absolute links in downloaded documents to relative documents.
Runs on most UNIX-like operating systems as well as Microsoft Windows. GNU Wget is a powerful website scraping tool with a variety of features.
Key features and benefits:
8. Arachnode.net
Arachnode.net is for those who are looking for open source web crawlers in is a C#. Arachnode.net is a class library which downloads content from the internet, indexes this content and provides methods to customize the process.
You can use the tool for personal content aggregation or you can use the tool for extracting, collecting and parse downloaded content into multiple forms. Discovered content is indexed and stored in Lucene.NET indexes.
Arachnode.net is a good software solution for text mining purposes as well as for learning advanced crawling techniques.
Key features and benefits:
9. OpenSearchServer
Omnisphere 2. 5 what s new. OpenSearchServer is an open source enterprise class search engine and web crawling software. It is a fully integrated and very powerful solution. One of the best solutions out there.
OpenSearchServer has one of the high rated reviews on the internet. It is packed with a full set of search functions and allows you to build your own indexing strategy.
Web Scraping Software For Mac
The web crawler includes inclusion or exclusion filters with wildcards, HTTP authentication, screenshot, sitemap, Etc. It is written in C, C++, and Java PHP and is a cross-platform solution.
Key features and benefits:
10. Nokogiri
If you use Ruby, Nokogiri could be your solution. Nokogiri can transform a webpage into a ruby object. In addition, it makes all the web crawling process really easy and simple.
Nokogiri is an HTML, XML, SAX, and Reader parser. It has many features and the ability to search documents via XPath or CSS3 selectors is one of the best.
Nokogiri is a large library and provides example usages for parsing and examining a document. This data extraction software runs on Windows, Linux, Mac OS, Ubuntu.
Key features and benefits:
How to choose the best open source website crawler?
Crawling or scraping data software tools are becoming more and more popular. Hundreds of options have become available with different functionality and scalability.
Choosing the right option can be a tricky business. Here are some tips to help you find out the right open source web scraping software for your needs.
The web data extraction solution that you choose should be scalable. If your data needs are growing, the crawling tool shouldn’t slow you down. Your future data requirements should be covered.
This means the website crawler architecture should permit adding extra machines and bandwidth to handle future scaling up.
It means all downloaded pages have to be distributed among many computers (even hundreds of computers) in fraction of seconds.
In other words, the web data extraction software should have the capability to perform in a distributed way across multiple machines.
Robustness refers to the web scraper ability to not get trapped in a large number of pages.
Website scrapers must be stable and not fall in the trap generated by many web servers which trick the crawlers to stop working while fetching an enormous number of pages in a domain.
Politeness is a must for all of the open source web crawlers. Politeness means spiders and crawlers must not harm the website. To be polite a web crawler should follow the rules identified in the website’s robots.txt file.
Also, your web crawler should have Crawl-Delay and User-Agent header. Crawl-Delay refers to stopping the bot from scraping website very frequently. When a website has too many requests that the server cannot handle, they become unresponsive and overloaded.
https://newhelp577.weebly.com/adobe-photoshop-elements-2018-mac-download.html. User-Agent header allows you to include your contact details (such as email and website) in it. Thus the website owner will contact you in case you are ignoring the core rules.
Open source web crawlers should be extensible in many terms. They have to handle new fetch protocols, new data formats, and etc. In other words, the crawler architecture should be modular.
Web Extraction Software For Mac Pro
Ask yourself what data delivery formats you need. Do you need JSON format? Then choose a web data extraction software that delivers the data in JSON. Of course, the best choice is to find one that delivers data in multiple formats.
As you might know, the scraped data is initially unstructured data (see unstructured data examples). You need to choose a software capable of cleaning the unstructured data and presenting it in a readable and manageable manner.
It doesn’t need to be a data cleansing software but should take care of cleaning up and classifying the initial data into useful data for you.
Conclusion
Scraping or extracting information from a website is an approach applied by a number of businesses that need to collect a large volume of data related to a particular subject. https://belagl.weebly.com/linkes-in-email-mac-app-are-broken.html.
All of the open source web crawlers have their own advantage as well as cons.
You need to carefully evaluate the web scrapers and then choose one according to your needs and requirement.
For example, Scrapy is faster and very easy to use but it is not as scalable as Heritrix, BUbiNG, and Nutch. Scrapy is also an excellent choice for those who aim focused crawls.
Heritrix is scalable and performs well in a distributed environment. However, it is not dynamically scalable. On the other hand, Nutch is very scalable and also dynamically scalable through Hadoop. Nokogiri can be a good solution for those that want open source web crawlers in Ruby. And etc.
If you need more open source solution related to data, then our posts about best open source data visualization software and best open source data modeling tools, might be useful for you.
Which are your favorite open source web crawlers? What data do you wish to extract?
Download the following infographic in PDF:
Comments are closed.
|
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2020
Categories |