The best replacement for grails is rails.

The best alternatives to grails are rated as following:
★★★★★  rails
★★★  ruby on rails
★★★  play
★★★  spring roo
★★  lift-web
★★  django
★★  roo
★★  spring
★  jsf
★  spring mvc
★  lift
★  groovy
★  vaadin
★  play framework
  gwt
  struts
  wicket
  seam
  stripes
  griffon
  spring boot

Your alternative for grails is not listed? Suggest!
Speaking about grails, one probably shouldn't forget about criteria.

Other search terms related to grails and their ratings are:
★★★★★ criteria
★★★ gorm
★★★ groovy
★★ gradle
★ extjs
★ gsp
★ intellij
You have in mind a companion for grails and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of grails in all years. Click on graph for more.
grails
rails
ruby on rails