What is a Web Scraper?
Websites that show lists of information generally do it by querying a database and displaying the data in a user friendly manner. A web scraper reverses this process by taking unstructured sites and turning them back into an organized database. This data can then be exported to a database or a spreadsheet file, such as CSV or Excel.
Some of the uses for web scraping software include:
- Build supplier and manufacturer price databases.
- Find best offers by comparing prices from multiple websites.
- Discover trends and statistical information for academic and scientific research.
- Extract information from governmental websites for data journalism.
- Aggregate information from several websites to be shown on a single website.
- Build contact information databases from real estate websites.
- Analyze forums and social media sites to discover trends and patterns.
- Apply custom sorts and filters to data shown on any website.
- Extract training data for machine learning.
Other Features
- Fast Extraction: Automatically delegate extraction tasks to separate browsers.
- Even Faster Extraction: Block images or unwanted web requests.
- Big Data: SQLite database can hold up to 140 terabytes.
- Database Generation: Table relations are generated based on extracted data.
- SQL Generation: Quickly join and filter tables for exporting or for input data.
- API Calling: Integrate web scraping and API calling into a single project.
- Text Manipulation: Generate functions to match, split or replace extracted text.
- JavaScript Support: Inject and run custom JavaScript code on any website.
- Proxy Rotation: Enter a list of proxies and rotate them at any given interval.
- Similar Elements Detection: Detects similar elements from one or two samples.
- List Detection: Automatically detect lists and table rows on websites.
- Data Exporting: Export data to CSV, Excel, XML, JSON or SQLite.
- Scheduling: Launchable from the command line or Windows Task Scheduler.
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