The product
What Capsule is building
Capsule is a web application format for making self-contained browser experiences that store their data in SQLite. Its public site describes a document-like file that opens as an app and can be shared directly, giving builders a way to explore a compact approach to small software tools. The product is publicly accessible through its official website.
From the maker
Capsule introduces single-file web apps with SQLite-backed data
Capsule was presented publicly by its maker on Hacker News on September 15, 2026. The official site describes the product as a single-file web-app format. This unclaimed editorial listing does not make claims about compatibility, data durability, adoption, or maker endorsement.