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Preview of SpiderPet

SpiderPet by Num Nums

A spider walks the page, harvests DOIs, ISBNs, paper ids, titles and key facts, and checks each one against Crossref, PubMed, arXiv and Wikipedia with your local AI. Needs the free SpiderPet app for Windows.

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About this extension
SpiderPet drops a little node-and-line spider onto the page you are reading. It walks across the text, lassoes what matters and restyles it right in the page: DOIs turn into green code, ISBNs into big blue code, paper ids into tags, titles into salmon serif.

Every find gets a check from a real source, shown as a badge next to it: verified, wrong, not found, unclear, opinion or ad. Hover a badge for the reason; click it to open the source.

Type what you are looking for in the SpiderPet app and the spider hunts for it on the page you have open: every match lights up, and the spider goes from match to match.

NEEDS THE SPIDERPET APP (Windows, free and open source). The add-on is the spider; the app is its brain. It does the checks with a local AI model (Ollama) on your own PC and keeps a library of everything the spider found. Download it from https://github.com/CodingIsCoolFr/SpiderPet/releases/latest and run it once.

Privacy: the page never leaves your PC. With Online checks on (a switch in the app), only each single find (an id, a title or a few search words) is looked up in Crossref, OpenLibrary, Google Books, PubMed, arXiv or Wikipedia.

Source code: https://github.com/CodingIsCoolFr/SpiderPet
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Permissions and data

Required permissions:

  • Exchange messages with programs other than Firefox
  • Access browser tabs

Optional permissions:

  • Access your data for all websites

Required data collection, according to the developer:

  • Website content
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Version
3.2.1
Size
67.43 KB
Last updated
8 days ago (Oct 4, 2026)
Related Categories
  • Search Tools
License
MIT License
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