The short answer is "No". Odoo eCommerce is not free, but it is however an affordable and feature-rich option for those looking for business solutions on the web.
Odoo eCommerce offers a range of plans that can be tailored to your specific needs, with prices starting from $30/month for basic functionality up to $179/month for more advanced features. This allows you to choose a plan that's within your budget and meets the needs of your business.
For more information on Odoo's plans and pricing, please take a look at their official site - https://www.odoo.com/pricing.
Additionally, Odoo provides a 30-day free trial to test out the service, which allows you to get an idea of how the platform works and what it can do for your business before signing up.
Ultimately, while Odoo eCommerce isn't free, it's an affordable and feature-rich solution that can help you to streamline your business and increase your online sales.