D&D Compendium now has a Discord server!
[Dungeon Master's Vault] Character Builder
The Level-Up Checklist
Farland DM and Player Tools
Online 3rd-party webapp for D&D, under development
Unearthed Arcana Lists
List of Unearthed Arcana (UA)
[Google Drive PDF] Unearthed Arcana Vol. 1
Race and Class lists with all variations
Alternate Point-Buy calculator
Printable Character Standees
Printable Character Minis - here’s some of the Printable Heroes
Which spells can be used by each class, and where's the overlap?