ListLab - Cross-Listing Tool for Resellers

Chrome extension · Lifestyle · Shopping

A Chrome extension in Lifestyle · Shopping with 6 users, barely installed. Audience over the last 30 days: +2.

Specific sites only: 10 match patterns.

What the developer says, and 2 screenshots

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

Users: 6 (the store no longer states an audience; this is the last figure it published)
Rating: not rated yet
Users, last 30 days: +2
Version: 1.4.1
Updated in the store: 2026-02-27
Published: 2026-02-27
Manifest: V3
Browser access: 3 permissions, 10 site patterns

How it has moved

Last 30 daysLast 90 days

Users

+2 since 01.10

2-6 · 11 readings

2026-10-053
2026-10-094
2026-10-103
2026-10-184
2026-10-193
2026-10-232
2026-10-243
2026-10-253
2026-10-285
2026-10-296
2026-10-316

Users

+2 since 01.09

2-6 · 24 readings

2026-09-014
2026-09-035
2026-09-044
2026-09-065
2026-09-074
2026-09-095
2026-09-104
2026-09-133
2026-09-154
2026-09-173
2026-09-222
2026-09-253
2026-09-264
2026-10-053
2026-10-094
2026-10-103
2026-10-184
2026-10-193
2026-10-232
2026-10-243
2026-10-253
2026-10-285
2026-10-296
2026-10-316

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: 10 match patterns.

https://poshmark.com/*
https://www.poshmark.com/*
https://mercari.com/*

Show the remaining 7

https://www.mercari.com/*
https://depop.com/*
https://www.depop.com/*
https://ebay.com/*
https://www.ebay.com/*
https://listlab-production.up.railway.app/*
http://localhost:3001/*

Act on the current tab, but only after you click it activeTab
Add items to the right-click menu contextMenus
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.

Like this one

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

Kamcart Multi-Channel Cross-Lister Describes nearly the same job, smaller audience 3 users (last published figure)
Omventa – Crosslister Describes nearly the same job audience not published
Reseller Assistant Describes nearly the same job, smaller audience 6 users
Reselling Tool - Crosslist Tool Describes nearly the same job, smaller audience 56 users ★ 3.0
SellerHound Crosslister Describes nearly the same job, smaller audience 24 users

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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Markdown

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

HTML

<a href="https://extops.dev/extensions/hpjmabfnlleiffdllccdelndpoolpcbk"><img src="https://extops.dev/extensions/hpjmabfnlleiffdllccdelndpoolpcbk/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 2026-10-31. The store last changed these figures on 2026-10-29. We publish no contact details for extension developers.