S3WaaS (Secure, Scalable and Sugamya Website as a Service) is a cloud-based platform developed by the National Informatics Centre for government entities in India. It helps departments and other public bodies create, customise, manage and host informational websites, supporting their online presence through a guided, template-based service. Eligible entities can publish websites under GOV.IN or NIC.IN domains.

The service offers customisable templates, integrated search and responsive layouts for access on smartphones, tablets and computers. Its framework includes compute, storage and networking infrastructure, and is built using open-source technology. S3WaaS also supports compliance with the mandatory guidelines in the GIGW Compliance Matrix and provides accessibility features to help make websites more usable.

To create a site, users sign in with an official GOV.IN or NIC.IN email address, choose a template, enter website and ownership details, and add or edit features and content, including text, images and video. They can then publish the site for public access. The platform also presents district, department and state portal examples, with previews and demo links.