Deno 2 Has a Free API You're Not Using

Deno 2 shipped with full npm compatibility, but the real story is the built-in APIs that eliminate entire categories of dependencies. No bundler, no test runner, no formatter to install. The Free APIs You're Missing 1. Deno.serve() — Zero-Config HTTP Server Deno . serve ({ port : 3000 }, async ( req ) => { const url = new URL ( req . url ); if ( url . pathname === " /api/users " && req . method === " GET " ) { const users = await Deno . readTextFile ( " ./data/users.json " ); return Response . json ( JSON . parse ( users )); } if ( url . pathname === " /api/upload " && req . method === " POST " ) { const form = await req . formData (); const file = form . get ( " file " ) as File ; await Deno . writeFile ( `./uploads/ ${ file . name } ` , file . stream ()); return Response . json ({ ok : true }); } return new Response ( " Not Found " , { status : 404 }); }); HTTP/2 server with streaming, WebSocket support, and zero imports. 2. Deno.Kv — Built-In Key-Value Database const kv = await Deno