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Keepa Product Finder - Cost Scraper

Chrome extension by Nonke-Osamu · Lifestyle · Shopping

A Chrome extension in Lifestyle · Shopping with 5 users, barely installed.

Specific sites only: 12 match patterns.

What the developer says, and 1 screenshot

Loading from the Chrome Web Store. Open the listing if it does not appear.

Users
5
Rating
not rated yet
Users, last 10 days
unchanged
Version
1.21.0
Updated in the store
2026-05-25
Published
2026-05-25
Manifest
V3
Browser access
5 permissions, 12 site patterns

How it has moved

Users
unchanged since 09.09
5-6 · 4 readings
2026-09-09: appeared in the store
  1. 2026-09-095appeared in the store
  2. 2026-09-156
  3. 2026-09-165
  4. 2026-09-185
Users
unchanged since 09.09
5-6 · 4 readings
2026-09-09: appeared in the store
  1. 2026-09-095appeared in the store
  2. 2026-09-156
  3. 2026-09-165
  4. 2026-09-185

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing more than once a day and record a point only when something moves. History beyond ninety days is in the app.

What it can reach

Specific sites only: 12 match patterns.

  • http://localhost:8765/*
  • http://127.0.0.1:8765/*
  • https://www.kojima.net/*
Show the remaining 9
  • https://lohaco.yahoo.co.jp/*
  • https://books.rakuten.co.jp/*
  • https://shop.autobacs.com/*
  • https://www.amiami.jp/*
  • https://slist.amiami.jp/*
  • https://www.petgo.jp/*
  • https://store.megasports.jp/*
  • https://www.cainz.com/*
  • https://store.shimamura.co.jp/*
  • See the address and title of every tab you have open tabs
  • Run its own code on the pages it can access scripting
  • Schedule work to run later alarms
Show the remaining 2
  • Run work in a hidden page offscreen
  • Store data in your browser storage

The full permission history for this extension

What changed recently

  1. Appeared in the store

The publisher

Nonke-Osamu.

Like this one

Listings the catalog judges closest in what they say they do.

  1. price2alert Describes nearly the same job, with an established audience 20k users ★ 2.0
  2. Hardware Info Price Extension Describes nearly the same job, smaller audience 9 users
  3. Zeus Describes nearly the same job, smaller audience 4 users
  4. Egaroshi Describes nearly the same job, smaller audience 5 users
  5. Lazyprice Describes nearly the same job, smaller audience 3 users ★ 5.0

The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.

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Figures come from our own daily pass over the public Chrome Web Store listing, last read on . We publish no contact details for extension developers.