Elegantt for Trello - The most elegant way to manage your Trello projects
GanttPRO - GanttPRO is online Gantt chart software for project management. CEOs, project managers, and teams use it every day to solve project management challenges.
Hello Epics for Trello - Simplify your Trello board with parent/child relationships
TunnelVision - See your next Trello tasks every time you open a browser tab
OnePager Pro for Microsoft Project - OnePager Pro builds Gantt charts, timelines and multi-project reports using data from Microsoft Project, Project Online, and Project Server.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.