Add your players and search for the monsters you want in your combat to build encounters.
Kobold+ Fight Club Encounter Builder
Kastark Encounter Tracker
Kastark Encounter Tracker is a no-frills website that serves as a valuable tool for Dungeon and Dragon players. With a simple and intuitive interface, players can easily track initiative order and current hit points for all characters and creatures involved in an encounter. The website allows users to quickly add and remove characters from the tracker, and automatically sorts the order based on initiative rolls. With no unnecessary features or distractions, Kastark Encounter Tracker is perfect for DMs who want to focus on running their game rather than wrestling with complex software.
DM Tools Tracker
Simple online initiative tracker including AC and HP tracking.
D&D Battle Tracker
D&D Battle Tracker is a combat tracker tool for Dungeons & Dragons 5th Edition. Track the initiative and status of all creatures involved in combat with this D&D combat tracker!
A Guide to Skills
Basic breakdown of individual Dungeons and Dragons skills and what they’re used for.
D&D Next Index
A detailed informational site good for learning how to play Dungeons & Dragons Next playtesting.
Simple online DM screen
Quick reference guide for actions and conditions with popups that provide more information for each item.
DM Screen #2
A printable Dungeon Master screen hosted on Imgur that covers everything from ability checks, character advancement, resting, damage and dying to conditions & states and much much more.
SRD version 2
5thsrd.org is a wiki style website dedicated to all the rules and information for Dungeons and Dragons 5E
DM Screen #4
In-depth printable reference sheets for Dungeon Masters.