Sell on Facebook Marketplace

SyncList captures products from eBay and auto-fills Facebook Marketplace listings with complete accuracy — including the tricky category-to-size field chaining that manual listers struggle with.

What SyncList Auto-Fills

SyncList handles every field on Facebook Marketplace's listing form using React-native event dispatching. Here's what gets filled automatically:

Photos: Up to 20 images uploaded via DataTransfer API
Title: eBay title with optional suffix/word filtering
Price: eBay price with optional markup/markdown
Category: Auto-selected from keyword matching engine
Condition: Mapped from eBay condition text
Size: Dynamically loaded based on category selection
Description: Full text with formatting and appended tags

Category-to-Size Field Chaining

Facebook Marketplace only shows the size field after a clothing category is selected. Most automation tools fail here because they try to fill the size before the field exists in the DOM.

SyncList handles this with intelligent chaining: it selects the category first, uses a MutationObserver to detect when the size field dynamically appears, then fills it with the correct size — complete with US/EU/letter size conversion.

Why List on Facebook Marketplace?

Massive Buyer Pool

Facebook Marketplace has over 1 billion users worldwide. Listing here gives your products exposure to local buyers who can pick up in person — no shipping required.

Zero Selling Fees

Unlike eBay (12.9%) or Poshmark (20%), Facebook Marketplace charges zero fees for local pickups. Keep 100% of your sale price.

Local + Shipping

Offer both local pickup and shipping options to maximize your buyer reach. SyncList fills the listing for both modes automatically.

Start Listing on Facebook Marketplace in Seconds

Capture from eBay, auto-fill on Facebook Marketplace, review, and publish. It's that simple.

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