Stop babysitting your Mercari listings.
SellerSync relists, promotes, and reprices your items for you, right inside your browser. The same actions you already do by hand, handled in one click.
Try a taste of the automation.
Hit Run on any action below. This is a demo of the SellerSync panel you get on Mercari. The real thing does the same thing on your actual listings, in seconds, while you do something better with your evening.
Reset demo
Relist inactive listings automatically.
Delist, relist, or edit prices in bulk.
Auto-drop prices after X days.
Bump listings to get more visibility.
Reselling is a grind. It does not have to be.
Every active seller knows the busywork. SellerSync takes it off your plate.
The nightly chore list
- Listings go stale and quietly stop showing up in search.
- Relisting forty items by hand eats your whole evening.
- You forget to drop prices, so slow items just sit there.
- Promotions expire before buyers ever see the deal.
One click, handled
- Relist everything stale in a single click.
- Bulk delist, relist, or reprice in seconds.
- Auto price drops on a schedule you choose.
- Auto-promote with 72 hour sales and offers to likers.
Up and running in under a minute.
Add it to Chrome
Install SellerSync from the Chrome Web Store. The dashboard and stale alerts are free, forever.
Open Mercari
Sign in like normal. The SellerSync panel sits right there next to your listings. Nothing to connect.
Hit Run
Click an action, or set your rules once and let SellerSync handle the busywork on its own.
Everything you need to keep listings moving.
Know exactly what needs attention.
The dashboard shows your active listings, how many have gone stale, and total views, all at a glance. Stale alerts tell you what to relist before it dies in search.
- Active, stale, and viewed counts in one place
- Stale-listing alerts so nothing slips through
- Always free, no account needed

Set your rules once, then walk away.
Decide when a listing counts as stale, auto-drop prices by the percent you choose after a set number of quiet days, and pick how you want to promote. SellerSync follows your rules so you do not have to remember to.
- Custom stale threshold
- Scheduled price drops by percent
- Choose your promote style, like 72 hour sales

Tune it in seconds, not menus.
Change your stale threshold or switch your promote type and save. No digging, no clutter. The settings are as simple as the rest of the panel.
- Plain controls, no learning curve
- Save once and SellerSync remembers
- Change it whenever your strategy shifts

Made for the way you actually sell.
Whether you flip a few items or run a full shop, SellerSync fits your pace.
The side hustler
A few dozen listings and no time after work. Let SellerSync relist and promote while you sleep.
The full-timer
Hundreds of items to manage. Bulk actions and scheduled price drops keep the whole shop moving.
The declutterer
Clearing the closet for cash. Promote to likers and watch the offers come in without lifting a finger.
Start free. Upgrade when you are ready.

- Listings dashboard
- Stale-listing alerts
- Manual one-click actions
- Auto-Relist
- Bulk Actions and Delist
- Price Drop Scheduler
- Auto-Promote
Premium unlocks inside the extension. No checkout here, and you can cancel anytime.
Sell smarter on Mercari.
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Read more →SellerSync is live.
Free to install from the Chrome Web Store. The dashboard and stale alerts are free forever, and Premium automation unlocks for $9.99/mo right inside the extension.
Add to Chrome, freeBuilt by Tinkrd LLC. Not affiliated with Mercari, Inc.
Questions, answered.
Yes. It runs entirely in your own browser on the Mercari pages you are already signed in to. We never see or store your Mercari password, and nothing is sent to a server.
No. SellerSync only clicks the same buttons you would click yourself. There is no scraping, no password sharing, and no account access of any kind.
SellerSync automates actions you are already allowed to do manually, like relisting and promoting your own items. It never does anything you could not do by hand.
The dashboard and stale-listing alerts are free. Premium automation is 9.99 dollars a month and unlocks inside the extension. Cancel anytime.
Right now. SellerSync is live on the Chrome Web Store, free to install.
SellerSync is a Chrome extension, so it runs on desktop Chrome. Mobile browsers are not supported yet.
No. SellerSync is an independent tool built by Tinkrd LLC and is not affiliated with Mercari, Inc.
Sell smarter, not harder.
Let SellerSync handle the relisting, promoting, and price drops so you can focus on sourcing and shipping.
Add to Chrome, free