Datasette provides an instant, read-only JSON API for any SQLite database. It also provides tools for packaging the database up as a Docker container and deploying that container to hosting providers such as Zeit Now. Got CSV data? Use csvs-to-sqlite to convert them to SQLite, then publish them with Datasette. Or try Datasette Publish, a web app that lets you upload CSV data and deploy it using Datasette without needing to install any software.