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.

OpenLink Structured Data Sniffer - Firefox Add-on

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.

Add-on stats

Manifest V3
Daily users: 448
-3
Rating: 4.36
(11)
Version: 3.4.8 (Last updated: 2024-11-12)
Version code: 5842658
Creation date: 2015-12-20
Weekly download count: 14
Firefox on Android: No
Permissions:
  • storage
  • webRequest
  • contextMenus
  • scripting
  • declarativeNetRequest
Host permissions:
  • <all_urls>
Size: 2.53M
URLs: Website
Full description: See detailed description

Other platforms

OpenLink Structured Data Sniffer (v3.4.8)
7,000 4.76 (17)
Not available on Android
Not available on Edge

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
View all user reviews

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 impact analysis details
  • Critical Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
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  • Medium ******* ****** ** *** ********* ******** *********
Risk likelihood

We don't have sufficient data to confidently determine the risk likelihood of OpenLink Structured Data Sniffer. Use it at your own risk.

Risk likelihood analysis details
  • High This extension has low user count. Unpopular extensions may not be stable or safe.
  • Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
  • Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
  • Good **** ********* *** **** **** *******
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