DuckDB now allows users to interact with Iceberg REST Catalogs directly from their browser without any setup. This functionality leverages a WebAssembly version of DuckDB, enabling serverless querying of Iceberg data. Users can run SQL commands and access their data securely through familiar interfaces.

This article explains how to deploy DuckDB as a WebAssembly module within Cloudflare Workers, enabling SQL queries without a traditional database server. It details the limitations of Cloudflare Workers, the use of Emscripten's Asyncify to handle asynchronous calls, and provides setup and coding instructions for creating a SQL query API.