Is it possible to transfer my website from my computer to the Internet without using hosting?

One potential approach to transferring a website from a local computer to the Internet without traditional hosting involves using a peer-to-peer network. In a peer-to-peer hosting setup, the website's files are stored and served from other users' computers within the network. This decentralized approach has the potential to be cost-effective, as it distributes the hosting burden among network participants.

However, there are notable drawbacks to peer-to-peer hosting. The availability and reliability of the website would become dependent on the uptime and bandwidth of the computers hosting the content. Additionally, managing security and updates becomes more complex in a peer-to-peer environment, as each participating computer may have different configurations and security measures in place. This could lead to challenges in ensuring consistent security across all the hosting nodes.

Another alternative is to make use of a content distribution network (CDN) to serve the website's files from multiple distributed servers. CDN services offer the advantage of improved website performance through caching and the distribution of content closer to the website's visitors. However, using a CDN may involve costs, and while it can reduce the load on a local computer, it still relies on external infrastructure for hosting.

For more technically inclined individuals, self-hosting a website by setting up personal server infrastructure is an option. This involves configuring a computer to act as a server, managing network infrastructure, ensuring security measures are in place, and maintaining consistent uptime. While this allows for more control over the hosting environment, it demands technical expertise and may not be practical for many individuals due to the complexities involved.
While there are alternatives to traditional hosting services, careful consideration of the technical, practical, and security implications is essential before attempting to transfer a website from a local computer to the Internet without using hosting. Each approach comes with its own set of challenges and trade-offs, and selecting the most appropriate option should be based on a thorough evaluation of specific needs and technical capabilities.

In case your Internet provider has assigned you a "white" IP address, it enables your computer's site to be accessible from the internet. Additionally, you can upload content solely to a hosting service.
It's important to note that the hosting service might vary and is not limited to website hosting; it also encompasses VPS, among other options.

Essentially, it's all on you to manage your site's hosting, since the computers used by hosting providers aren't all that different from your own.

Serving your site from your computer without hosting is feasible using tools like Python's SimpleHTTPServer or Node's http-server, but this is strictly for dev or demo purposes. Your machine must stay online 24/7 with a static IP, and you'll need to configure port forwarding and DNS manually.
It's a pain and not recommended for real-world deployment. Hosting abstracts these complexities, letting you focus on code rather than network configs and uptime headaches.