Selling on both Shopify and Etsy? Oversells cost you money and kill your reviews. ShopSync syncs your inventory between Shopify and Etsy in real-time via webhooks. When a product sells on one platform, the other updates instantly. - Web dashboard to monitor sync status and logs - Automatic Etsy token refresh - Full sync with Shopify as source of truth - Deploy on Railway in 5 minutes - Full source code included Built in Python/FastAPI. Open source friendly.