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Trunk
Real-time stock syncing across multiple sales channels.
What it does
Syncs inventory levels across 10+ e-commerce platforms in real-time. Supports kitting and bundling to track component-level stock. Automates stock updates for Etsy, Squarespace, Shopify, and eBay. Provides low-stock alerts and centralized inventory reporting. Handles duplicate listings and variations automatically.
Why it works
Speed: Boasts one of the fastest sync times in the industry, often updating in less than a minute. Ease of Use: Unlike enterprise ERPs, it is designed for 'set-and-forget' automation without complex setup. Etsy Specialist: Deeply understands the specific API limitations and needs of Etsy sellers. Reliability: Eliminates the manual audit process, reducing human error in stock counts.
Category: Business & Operations
Team Size: 2-10
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As of 2026
Business & Operations
Revenue: $100k-$1M ARR
Real-time stock syncing across multiple sales channels.
Overview
Trunk is a centralized inventory management engine that provides real-time stock synchronization for multi-channel e-commerce sellers. It prevents overselling by instantly updating inventory levels across platforms like Etsy, Shopify, and Amazon the moment a sale is made on any channel.
Funding status: Bootstrapped
Revenue source: Subscriptions
Customer type: B2B
Pricing: Usage-Based
Tech stack: Node.js, React, AWS
Platform: Web
Integrations: Shopify, Etsy, WooCommerce, Squarespace, QuickBooks Online
Founder story
Nicolas Gremion founded Trunk after noticing e-commerce sellers were spending hours every week manually updating stock levels across different sites. He built Trunk as a lightweight, robust piece of middleware to solve the 'overselling' problem, allowing small business owners to scale without fear of inventory chaos.
What it does
- Syncs inventory levels across 10+ e-commerce platforms in real-time
- Supports kitting and bundling to track component-level stock
- Automates stock updates for Etsy, Squarespace, Shopify, and eBay
- Provides low-stock alerts and centralized inventory reporting
- Handles duplicate listings and variations automatically.
Who it's for
- E-commerce sellers
- Artists and makers
- Boutique retailers
- Multi-channel brands
Why it works
- Speed: Boasts one of the fastest sync times in the industry, often updating in less than a minute
- Ease of Use: Unlike enterprise ERPs, it is designed for 'set-and-forget' automation without complex setup
- Etsy Specialist: Deeply understands the specific API limitations and needs of Etsy sellers
- Reliability: Eliminates the manual audit process, reducing human error in stock counts.
Growth strategies
- Targeted the 'maker' niche on Etsy and Squarespace that were underserved by complex inventory tools.
- Used a transparent, flat- rate pricing model that appealed to small and growing businesses.
- Leveraged high- intent organic search traffic for terms like 'Etsy Shopify sync'.
- Maintained an extremely high customer satisfaction rating on app marketplaces to drive referral growth.
Alternatives
Comparison overview
- Linnworks: An enterprise giant that is often too complex and expensive for solo or small-team sellers.
- Stocky: Excellent if you only sell on Shopify, but lacks Trunk's cross-platform reach.
- Sellbrite: Strong multi-channel support but can be significantly more expensive for simple inventory syncing.
- Trunk is the preferred choice for sellers who want a lightweight, reliable sync engine without the bloat of a full retail suite.