Trello

Trello is a visual collaboration tool built around the Kanban board. Work is organized into boards, lists, and cards that users drag across stages, with cards holding checklists, due dates, attachments, labels, and comments to keep details in context.

The tool appeals to individuals and teams that want a simple, flexible way to track tasks and workflows. Its main strength is an approachable interface that requires little setup, extended by automation through its built-in Butler engine and by Power-Ups that add calendars, integrations, and reporting.

Created in 2011 by Fog Creek Software and acquired by Atlassian in 2017, Trello is now part of a broad suite of work tools. It follows a freemium model, with a capable free tier and paid plans that unlock more automation, larger boards, and administrative features.