OpenLink Structured Data Sniffer

Adds structured data discovery and handling of multiple content-types to your browser. Reveals Structured Metadata embedded within HTML pages in notations including POSH (Plain Old Semantic HTML), Microdata, JSON-LD, RDF-Turtle, and RDFa.
What is OpenLink Structured Data Sniffer?
OpenLink Structured Data Sniffer is a powerful Firefox add-on that enables the discovery and handling of structured metadata embedded within HTML pages. It supports various notations including POSH, Microdata, JSON-LD, RDF-Turtle, and RDFa. Beyond HTML, it allows the browser to natively render JSON-LD and RDF-Turtle documents. With features like a Web Service Console, copy and paste functionality, and support for data visualization, it simplifies interaction with RESTful APIs and facilitates exporting and reusing structured data. Additionally, it provides seamless integration with SPARQL-accessible Knowledge Graphs, allowing one-click saving of structured data and connecting words or phrases to entity descriptions across knowledge graphs.
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Add-on stats

Users: 456 ▲ 14
Rating: 4.30 (10)
Version: 3.4.8 (Last updated: 2024-11-12)
Creation date: 2015-12-20
Weekly download count: 12
Firefox on Android: No
Risk impact: High risk impact
Risk likelihood: Moderate risk likelihood
Manifest version: 3
Permissions:
  • storage
  • webRequest
  • contextMenus
  • scripting
  • declarativeNetRequest
Host permissions:
  • <all_urls>
Size: 2.53M
URLs: Website

Ranking

# 4732 ▲ 50
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Other platforms

OpenLink Structured Data Sniffer (v3.4.8)
4.76 (17) 7,000
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Add-on summary

Analyze keywords

This powerful browser extension adds the following functionality to your Firefox browser:

  1. Discovery of Structured Metadata (POSH, JSON-LD, Microdata, RDF-Turtle, and RDFa) embedded in HTML Documents
  2. Handling of content-types beyond HTML -- enables your browser to natively render JSON-LD and RDF-Turtle documentsF-Turtle documents
  3. A Web Service Console -- that simplifies RESTful interaction by exposing HTTP call parameters. A powerful mechanism for toggling Identity when working over TLS connections -- such that identity changes don't require browser restarts
  4. A "Copy & Paste" feature for exporting content from RDF-Turtle, RDFa, JSON-LD, or POSH tabs to RDF-Turtle or JSON-LD formatted clipboards, for reuse and remixing elsewhere
  5. CSV and JSON documents support with regards to data visualization.
  6. One-click saving of Structured Data to SPARQL-accessible Knowledge Graphs, subject to ACLs
  7. SuperLinks that connect words and phrases in current documents to entity descriptions across Knowledge Graphs, via a single-click

User reviews

Although I used to use this add-on for a very long time I am disappointed to find it is now offering a "service" to ChatGPT without informing me about changed terms of services or similar. I'm unsure whether this is even allowed under the current license. Find the new repo at https://github.com/OpenLinkSoftware/OSDS_extension
by Ryuno-Ki, 2024-08-06
by Egorka, 2024-05-03
by Egorka, 2024-05-03
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Add-on safety

Risk impact

OpenLink Structured Data Sniffer requires some sensitive permissions that could impact your browser and data security. Exercise caution before installing.

Risk likelihood

OpenLink Structured Data Sniffer is probably trust-worthy. Prefer other publishers if available. Exercise caution when installing this add-on.

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