ebayカテゴリー発見君
By naokijodan
eBay のカテゴリID をオフラインで検索・ツリー閲覧・コピー・検証する手動出品用ツール (EBAY_US, treeVersion 134)。eBay には一切アクセスしません。eBay Motors（自動車・オートバイ部品）のカテゴリにも対応。
Time on the storeUnder a yearA rough range, not an exact date
Store users98As shown on the Chrome Web Store
Chrome Web Store ratingNot rated yetNo store ratings yet
Last store update28 Sep 2026Version 1.3.0, 10 days ago
Inside the extension
Product image 1 of 4Reviews
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The maker
naokijodan has 12 listings on the store. Updates most of their listings often.
- Listings
- 12
- Combined store users
- ≈890
- Store Featured
- 0
- Updated in the last 90 days
- 6 of 12
- みちゃった君226 users · updated 5 months ago
- HSコードワークシート作成君106 users · updated 13 days ago
- しらべる君 - eBay価格リサーチ103 users · updated 7 months ago
- Watch Worksheet作成君91 users · updated 55 days ago
Combined users can count the same person more than once. See all 12 listings
Ext Watch AI
Should you build in this niche?
One research report for ebayカテゴリー発見君. Reports come with Plus, Pro and Max.
- Takeaway & demandCited takeaway and search volumes
- Traffic & domainPopularity rank, visits and authority
- Money & pricingPlans and prices from the maker’s site
- ReviewsComplaints and praise, quoted
- Competitors & ranksRank against the closest listings
- Build opportunityWhat to build and how to position it
- Every number shows its source and date
- Ready in a minute or two
- Report and PDF yours for 30 days