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Mercari JP Finder

Chrome extension by techphan · Lifestyle · Shopping

A Chrome extension in Lifestyle · Shopping with 10 users, barely installed. Audience over the last 30 days: unchanged.

Specific sites only: 3 match patterns.

What the developer says, and 2 screenshots

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

Users
10
Rating
not rated yet
Users, last 30 days
Unchanged
Version
1.3.2
Updated in the store
2026-05-15
Published
2026-04-22
Manifest
V3
Browser access
1 permission, 3 site patterns

How it has moved

Users
unchanged since 01.10
10-13 · 13 readings
  1. 2026-10-0811
  2. 2026-10-0912
  3. 2026-10-1311
  4. 2026-10-1612
  5. 2026-10-1813
  6. 2026-10-1912
  7. 2026-10-2010
  8. 2026-10-2111
  9. 2026-10-2210
  10. 2026-10-2411
  11. 2026-10-2510
  12. 2026-10-2910
  13. 2026-10-3110
Users
-3 since 01.09
10-13 · 25 readings
  1. 2026-09-0113
  2. 2026-09-0412
  3. 2026-09-0611
  4. 2026-09-0812
  5. 2026-09-1011
  6. 2026-09-1312
  7. 2026-09-1711
  8. 2026-09-2012
  9. 2026-09-2111
  10. 2026-09-2510
  11. 2026-09-2611
  12. 2026-09-2810
  13. 2026-10-0811
  14. 2026-10-0912
  15. 2026-10-1311
  16. 2026-10-1612
  17. 2026-10-1813
  18. 2026-10-1912
  19. 2026-10-2010
  20. 2026-10-2111
  21. 2026-10-2210
  22. 2026-10-2411
  23. 2026-10-2510
  24. 2026-10-2910
  25. 2026-10-3110

A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times 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: 3 match patterns.

  • https://jp.mercari.com/*
  • https://cdn.jsdelivr.net/*
  • https://latest.currency-api.pages.dev/*
  • Store data in your browser storage

The full permission history for this extension

What changed recently

Nothing has moved on this listing since we started watching it.

The publisher

techphan publishes 3 listings we track, 43 users between them.

  1. Clean Save As PNG techphan · Make Chrome Yours · Functionality · published 2026-04-07 26 users ★ 5.0
  2. Peek Ratings techphan · Lifestyle · Entertainment · published 2026-05-02 7 users

Like this one

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

  1. Mercari Price Checker Describes nearly the same job, smaller audience 7 users (last published figure)
  2. Japan Shopping Assistant! Describes nearly the same job, smaller audience 75 users ★ 3.0
  3. My Deal Verifier Describes nearly the same job, smaller audience 9 users
  4. ZenMarket -> Buyee Describes nearly the same job, smaller audience 17 users
  5. Merhist Chrome Extension Describes nearly the same job, smaller audience 21 users ★ 3.0

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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Users and rating on Ext Ops Panel

Markdown

[![Users and rating on Ext Ops Panel](https://extops.dev/extensions/ipddekcameohjkkphgcbpdnogfdlhfgk/badge.svg)](https://extops.dev/extensions/ipddekcameohjkkphgcbpdnogfdlhfgk)

HTML

<a href="https://extops.dev/extensions/ipddekcameohjkkphgcbpdnogfdlhfgk"><img src="https://extops.dev/extensions/ipddekcameohjkkphgcbpdnogfdlhfgk/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>

Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-29. We publish no contact details for extension developers.

Where the data comes from: how the catalog is built