The best replacement for node js is angularjs.

The best alternatives to node js are rated as following:
★★★★★  angularjs
★★★  nginx
★★★  golang
★★★  erlang
  laravel

Your alternative for node js is not listed? Suggest!
Speaking about node js, one probably shouldn't forget about mongodb.

Other search terms related to node js and their ratings are:
★★★★★ mongodb
★★★★ backbone
★ angularjs
You have in mind a companion for node js and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of node js in all years. Click on graph for more.
node js
angularjs
nginx