Butler is the automation assistant built into Trello. It carries out actions on your behalf, following rules you define, without a single line of code.

What Butler can do

• Rules — “when a card moves to Done, tick its due date”.
• Card buttons — one click to apply several actions at once.
• Scheduled commands — “every Monday, create the weekly report card”.

The principle is always the same: a trigger (“when…”) followed by one or more actions (“then…”). You build these rules from menus, in near-plain English.

A concrete example

“When a card is given the Urgent label, move it to the top of the list and assign it to me.” Butler handles the rest, every single time.

Key takeaway: Butler automates repetitive actions using “when… then…” logic.