Name URL RWD? Windows Macintosh
Adobe Dreamweaver http://www.adobe.com/products/dreamweaver.html yes yes yes
Macaw http://macaw.co/ yes yes yes
Coffee Cup Responsive Layout Maker Pro http://www.coffeecup.com/responsive-layout-maker-pro/ yes yes yes
Microsoft Notepad http://www.notepad.org/ no yes no
Tummult Hype http://tumult.com/hype/ no no yes