GanttProject

GanttPRO is a project management software that facilitates project scheduling and implementation with the help of Gantt charts. Users can create tasks, assign them, set dependencies between them, and specify their start and end dates and duration.

OpenProject is a web-based system that provides secure and flexible open-source project management software. It allows you to manage projects across a diversity of teams and departments.

Calligra Plan is a project management application for managing moderately large projects with multiple resources. Plan offers different types of task dependencies and timing constraints to enable you to model your project adequately.

Avaza is a business management solution that includes features for project management, resource scheduling, online timesheets, expense management, online invoicing, recurring invoicing, quotes and invoices, and more.

Coda is a document management and collaboration solution which helps businesses create documents and spreadsheets, streamlining processes related to project management, product launches, and more.

TeamGantt is a cloud-based Gantt chart and project planning solution for teams. It offers project collaboration tools, task management, file sharing, time tracking, and more.

Asana is a project management tool that keeps teams organized, on track, and on time. Asana allows you to keep track of project progress, plan sprints, integrate with other tools, and launch successful projects.

ClickUp is one app that can save you the use in many others. It includes docs, reminders, goals, calendars, an inbox, and it's fully customizable.

Trello helps teams work more collaboratively and get more done.