Local development
Sunsetting on July 20, 2026
Deno Deploy Classic will be shut down on July 20, 2026. We recommend migrating to the new Deno Deploy platform. See the migration guide for details.
For local development you can use the deno CLI. To install deno, follow the
instructions in the
Deno manual.
After installation, you can run your scripts locally:
$ deno run --allow-net=:8000 https://deno.com/examples/hello.js
Listening on http://localhost:8000
To watch for file changes add the --watch flag:
$ deno run --allow-net=:8000 --watch ./main.js
Listening on http://localhost:8000
For more information about the Deno CLI, and how to configure your development environment and IDE, visit the Deno Manual's Getting Started section.