Boxes is a command line program that draws a box around its input text. It can remove and repair those boxes, too. You can easily make your own box designs if you wish, but many designs are already provided.

Hello World!  ==>

 __________________
/\                 \  
\_|                |  
  |  Hello World!  |  
  |                |  
  |  ______________|_ 
  \_/_______________/

/******************/
/*                */
/*  Hello World!  */
/*                */
/******************/

         \\\///
        / _  _ \
      (| (.)(.) |)
.---.OOOo--()--oOOO.---.
|                      |
|     Hello World!     |
|                      |
'---.oooO--------------'
     (   )   Oooo.
      \ (    (   )
       \_)    ) /
             (_/