There will be times where you need to server some files through a browser and instead of setting a local instance of apache or MAMP, it might just be easier to use something in the command-line. I would recommend the node option as it seems to have a few more options. Mac ships with python and PHP which make those easier in some cases. Also, the PHP server will handle php files along with standard html.

Node

First install http-server globally via npm.

npm install -g http-server

Then it’s as easy as

http-server

PHP

php -S <domain>:<port>

ie: php -s localhost:8000

Python

python -m SimpleHTTPServer

ie: python -m SimpleHTTPServer 8000