The best replacement for dia is visio.

The best alternatives to dia are rated as following:
★★★★★  visio
★★★★  cia
★★★  den
★★★  spy
★★  smartdraw
★★  inkscape
★  pencil project
★  graphviz
★  openoffice draw
★  libreoffice draw
  kivio
  lucidchart
  umbrello
  ariel
  día
  staruml
  la dia
  xenia
  djx
  wenona
  argouml
  dvy
  mercadona
  bon dia

Your alternative for dia is not listed? Suggest!
Speaking about dia, one probably shouldn't forget about long term parking.

Other search terms related to dia and their ratings are:
★★★★★ long term parking
You have in mind a companion for dia and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of dia in all years. Click on graph for more.
dia
visio
cia