SITE123 is a website-building platform designed to help individuals and businesses establish an online presence without coding or design skills. Its guided editor provides ready-made structures, styles, and layouts, allowing users to add their own content and publish a responsive website. The service supports business websites and online stores, where users can upload products, configure store settings, and sell online.

SITE123 offers free website hosting, a complimentary subdomain, SEO tools, and an integrated image library. Websites are adapted for smartphones and tablets, and content can be updated after publication. The platform also includes an AI app builder and tools for connecting a custom domain, which is available for an additional charge. Users can create and manage multiple websites under one account.

For support, SITE123 provides 24/7 live chat to answer questions and guide customers through the building process. Its service is aimed at people seeking a straightforward way to create, publish, and maintain a website, with hosting and essential editing tools included in its free offering.