What does Crawl extract?

Crawl fetches the public URL you submit and extracts HTML tables, JSON-LD blocks, and qualifying lists into reviewable rows.

What does Chart accept?

Chart reads .xlsx and .xls files in the browser and can also chart the first dataset sent from Crawl.

Will Crawl work on every page?

No. Pages behind logins, heavy bot protection, or unusually large responses may fail or return no structured data.

Chart files stay in your browser. Crawl requests are processed on demand from the URL you submit so the service can fetch and parse the page.

Introduction to Web Data Extraction

Web data extraction (often called web scraping) is the process of pulling structured data from websites. Whether you're a researcher, analyst, or developer, extracting data programmatically saves hours of manual copy-pasting.

Why Extract Web Data?

Automation — Collect data from dozens of pages in seconds
Accuracy — Eliminate manual transcription errors
Timeliness — Get the freshest data on demand
Scale — Analyze hundreds of data points that would be impractical to collect by hand

What Can You Extract?

Most modern web pages contain structured data in several forms:

HTML Tables — <table> elements with rows and columns
Lists — <ul>, <ol>, and <dl> elements
JSON-LD — Structured data embedded in <script> tags (common for product data, reviews, events)
Schema.org markup — Microdata and RDFa annotations

How It Works

Enter a URL, and the extractor fetches the page content, identifies all structured elements, and parses them into a clean tabular format ready for analysis or visualization.

Try it on the Extract page of DataVizForge.