RPGBuddy – Track your character, initiative, and custom encounters!
Point Buy Calculator – Easily build your attributes with “Point Buy” rules instead of rolling for attributes.
Dice Roller – Online dice roller.
More Purple More Better’s Character Sheet – Fully automated character sheet that contains all official content, as well as Unearthed Arcana. Content is toggle-able.
New Player Friendly Character Sheet – A character sheet that may be more friendly to people new to D&D.
Bogsy’s Magical Scrolls – Mobile friendly website to lookup and manage spells.
Cheat Sheets – Collection of cheat sheets. The combat sheet is particularly useful to hand out to your players.
Character Creation Cheat Sheet – Cheat sheet for character creation steps.